447117197 has 4 divisors (see below), whose sum is σ = 453790656. Its totient is φ = 440443740.

The previous prime is 447117131. The next prime is 447117227. The reversal of 447117197 is 791711744.

It is a happy number.

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 not a de Polignac number, because 447117197 - 2¹⁴ = 447100813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447113197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336629 + ... + 3336762.

It is an arithmetic number, because the mean of its divisors is an integer number (113447664).

Almost surely, 2^447117197 is an apocalyptic number.

It is an amenable number.

447117197 is a deficient number, since it is larger than the sum of its proper divisors (6673459).

447117197 is an equidigital number, since it uses as much as digits as its factorization.

447117197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673458.

The product of its digits is 49392, while the sum is 41.

The square root of 447117197 is about 21145.1459441641. The cubic root of 447117197 is about 764.6695410112.

The spelling of 447117197 in words is "four hundred forty-seven million, one hundred seventeen thousand, one hundred ninety-seven".