431634864 has 40 divisors (see below), whose sum is σ = 1115899312. Its totient is φ = 143769600.

The previous prime is 431634857. The next prime is 431634871. The reversal of 431634864 is 468436134.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (431634857) and next prime (431634871).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83952 + ... + 88944.

Almost surely, 2^431634864 is an apocalyptic number.

It is an amenable number.

431634864 is an abundant number, since it is smaller than the sum of its proper divisors (684264448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431634864 is a wasteful number, since it uses less digits than its factorization.

431634864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805 (or 6799 counting only the distinct ones).

The product of its digits is 165888, while the sum is 39.

The square root of 431634864 is about 20775.8240269791. The cubic root of 431634864 is about 755.7395872489.

The spelling of 431634864 in words is "four hundred thirty-one million, six hundred thirty-four thousand, eight hundred sixty-four".