87269631 has 4 divisors (see below), whose sum is σ = 116359512. Its totient is φ = 58179752.

The previous prime is 87269627. The next prime is 87269657. The reversal of 87269631 is 13696278.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87269631 - 2² = 87269627 is a prime.

It is a super-2 number, since 2×87269631² = 15231976989752322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87269431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14544936 + ... + 14544941.

It is an arithmetic number, because the mean of its divisors is an integer number (29089878).

Almost surely, 2^87269631 is an apocalyptic number.

87269631 is a deficient number, since it is larger than the sum of its proper divisors (29089881).

87269631 is a wasteful number, since it uses less digits than its factorization.

87269631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29089880.

The product of its digits is 108864, while the sum is 42.

The square root of 87269631 is about 9341.8216103713. The cubic root of 87269631 is about 443.5620478648.

The spelling of 87269631 in words is "eighty-seven million, two hundred sixty-nine thousand, six hundred thirty-one".