677912431 has 8 divisors (see below), whose sum is σ = 774928800. Its totient is φ = 580939008.

The previous prime is 677912423. The next prime is 677912441. The reversal of 677912431 is 134219776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 677912431 - 2³ = 677912423 is a prime.

It is a super-2 number, since 2×677912431² = 919130528208659522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677912401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37635 + ... + 52651.

It is an arithmetic number, because the mean of its divisors is an integer number (96866100).

Almost surely, 2^677912431 is an apocalyptic number.

677912431 is a deficient number, since it is larger than the sum of its proper divisors (97016369).

677912431 is a wasteful number, since it uses less digits than its factorization.

677912431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21473.

The product of its digits is 63504, while the sum is 40.

The square root of 677912431 is about 26036.7515446916. The cubic root of 677912431 is about 878.4651408935.

The spelling of 677912431 in words is "six hundred seventy-seven million, nine hundred twelve thousand, four hundred thirty-one".