715789631 has 2 divisors, whose sum is σ = 715789632. Its totient is φ = 715789630.

The previous prime is 715789621. The next prime is 715789643. The reversal of 715789631 is 136987517.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 715789631 - 2¹⁰ = 715788607 is a prime.

It is a super-2 number, since 2×715789631² = 1024709591694232322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (715789621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357894815 + 357894816.

It is an arithmetic number, because the mean of its divisors is an integer number (357894816).

Almost surely, 2^715789631 is an apocalyptic number.

715789631 is a deficient number, since it is larger than the sum of its proper divisors (1).

715789631 is an equidigital number, since it uses as much as digits as its factorization.

715789631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 47.

The square root of 715789631 is about 26754.2451024132. The cubic root of 715789631 is about 894.5304616592.

The spelling of 715789631 in words is "seven hundred fifteen million, seven hundred eighty-nine thousand, six hundred thirty-one".