87258572 has 12 divisors (see below), whose sum is σ = 153728400. Its totient is φ = 43336176.

The previous prime is 87258557. The next prime is 87258641. The reversal of 87258572 is 27585278.

It is a super-2 number, since 2×87258572² = 15228116774958368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72608 + ... + 73799.

It is an arithmetic number, because the mean of its divisors is an integer number (12810700).

Almost surely, 2^87258572 is an apocalyptic number.

It is an amenable number.

87258572 is a deficient number, since it is larger than the sum of its proper divisors (66469828).

87258572 is a wasteful number, since it uses less digits than its factorization.

87258572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146560 (or 146558 counting only the distinct ones).

The product of its digits is 313600, while the sum is 44.

The square root of 87258572 is about 9341.2296835053. The cubic root of 87258572 is about 443.5433106865.

The spelling of 87258572 in words is "eighty-seven million, two hundred fifty-eight thousand, five hundred seventy-two".