87500631 has 16 divisors (see below), whose sum is σ = 120683520. Its totient is φ = 56333760.

The previous prime is 87500629. The next prime is 87500659. The reversal of 87500631 is 13600578.

It is not a de Polignac number, because 87500631 - 2¹ = 87500629 is a prime.

It is a super-2 number, since 2×87500631² = 15312720850796322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87500131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74656 + ... + 75818.

It is an arithmetic number, because the mean of its divisors is an integer number (7542720).

Almost surely, 2^87500631 is an apocalyptic number.

87500631 is a deficient number, since it is larger than the sum of its proper divisors (33182889).

87500631 is a wasteful number, since it uses less digits than its factorization.

87500631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 87500631 is about 9354.1771952428. The cubic root of 87500631 is about 443.9530680448.

The spelling of 87500631 in words is "eighty-seven million, five hundred thousand, six hundred thirty-one".