431797887 has 12 divisors (see below), whose sum is σ = 625412320. Its totient is φ = 287078688.

The previous prime is 431797879. The next prime is 431797897. The reversal of 431797887 is 788797134.

It is not a de Polignac number, because 431797887 - 2³ = 431797879 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 (431797897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62062 + ... + 68667.

Almost surely, 2^431797887 is an apocalyptic number.

431797887 is a deficient number, since it is larger than the sum of its proper divisors (193614433).

431797887 is a wasteful number, since it uses less digits than its factorization.

431797887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131102 (or 131099 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 431797887 is about 20779.7470388838. The cubic root of 431797887 is about 755.8347196842.

The spelling of 431797887 in words is "four hundred thirty-one million, seven hundred ninety-seven thousand, eight hundred eighty-seven".