4446644197 has 4 divisors (see below), whose sum is σ = 4541253696. Its totient is φ = 4352034700.

The previous prime is 4446644183. The next prime is 4446644243. The reversal of 4446644197 is 7914466444.

4446644197 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4446644197 is a prime.

It is a super-2 number, since 2×4446644197² = 39545289229427549618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4446644197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4446644177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47304679 + ... + 47304772.

It is an arithmetic number, because the mean of its divisors is an integer number (1135313424).

Almost surely, 2^4446644197 is an apocalyptic number.

4446644197 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

4446644197 is a deficient number, since it is larger than the sum of its proper divisors (94609499).

4446644197 is an equidigital number, since it uses as much as digits as its factorization.

4446644197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94609498.

The product of its digits is 2322432, while the sum is 49.

The square root of 4446644197 is about 66683.1627699227. The cubic root of 4446644197 is about 1644.4125909633.

The spelling of 4446644197 in words is "four billion, four hundred forty-six million, six hundred forty-four thousand, one hundred ninety-seven".