86907631 has 8 divisors (see below), whose sum is σ = 87620400. Its totient is φ = 86198208.

The previous prime is 86907629. The next prime is 86907637. The reversal of 86907631 is 13670968.

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 86907631 - 2¹ = 86907629 is a prime.

It is a super-2 number, since 2×86907631² = 15105872652064322, 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 (86907637) 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, 78675 + ... + 79771.

It is an arithmetic number, because the mean of its divisors is an integer number (10952550).

Almost surely, 2^86907631 is an apocalyptic number.

86907631 is a deficient number, since it is larger than the sum of its proper divisors (712769).

86907631 is a wasteful number, since it uses less digits than its factorization.

86907631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 86907631 is about 9322.4262399871. The cubic root of 86907631 is about 442.9478899957.

The spelling of 86907631 in words is "eighty-six million, nine hundred seven thousand, six hundred thirty-one".