87888031 has 16 divisors (see below), whose sum is σ = 110423808. Its totient is φ = 67953600.

The previous prime is 87888029. The next prime is 87888043. The reversal of 87888031 is 13088878.

It is not a de Polignac number, because 87888031 - 2¹ = 87888029 is a prime.

It is a super-2 number, since 2×87888031² = 15448611986113922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87888071) 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, 5731 + ... + 14443.

It is an arithmetic number, because the mean of its divisors is an integer number (6901488).

Almost surely, 2^87888031 is an apocalyptic number.

87888031 is a deficient number, since it is larger than the sum of its proper divisors (22535777).

87888031 is a wasteful number, since it uses less digits than its factorization.

87888031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8862.

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 87888031 is about 9374.8616523125. The cubic root of 87888031 is about 444.6072889353.

The spelling of 87888031 in words is "eighty-seven million, eight hundred eighty-eight thousand, thirty-one".