477715631 has 2 divisors, whose sum is σ = 477715632. Its totient is φ = 477715630.

The previous prime is 477715627. The next prime is 477715633. The reversal of 477715631 is 136517774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 477715631 - 2² = 477715627 is a prime.

It is a super-2 number, since 2×477715631² = 456424448203456322, which contains 22 as substring.

Together with 477715633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477715633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238857815 + 238857816.

It is an arithmetic number, because the mean of its divisors is an integer number (238857816).

Almost surely, 2^477715631 is an apocalyptic number.

477715631 is a deficient number, since it is larger than the sum of its proper divisors (1).

477715631 is an equidigital number, since it uses as much as digits as its factorization.

477715631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 41.

The square root of 477715631 is about 21856.7067738944. The cubic root of 477715631 is about 781.7294689568.

The spelling of 477715631 in words is "four hundred seventy-seven million, seven hundred fifteen thousand, six hundred thirty-one".