4394505397 has 4 divisors (see below), whose sum is σ = 4401842400. Its totient is φ = 4387168396.

The previous prime is 4394505371. The next prime is 4394505407. The reversal of 4394505397 is 7935054934.

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-4394505397 is a prime.

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 4394505397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4394515397) 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, 3667603 + ... + 3668800.

It is an arithmetic number, because the mean of its divisors is an integer number (1100460600).

Almost surely, 2^4394505397 is an apocalyptic number.

It is an amenable number.

4394505397 is a deficient number, since it is larger than the sum of its proper divisors (7337003).

4394505397 is an equidigital number, since it uses as much as digits as its factorization.

4394505397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337002.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The square root of 4394505397 is about 66291.0657404148. The cubic root of 4394505397 is about 1637.9601593315.

The spelling of 4394505397 in words is "four billion, three hundred ninety-four million, five hundred five thousand, three hundred ninety-seven".