87258568 has 16 divisors (see below), whose sum is σ = 163725660. Its totient is φ = 43598400.

The previous prime is 87258557. The next prime is 87258641. The reversal of 87258568 is 86585278.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73994404 + 13264164 = 8602^2 + 3642^2 .

It is a super-2 number, since 2×87258568² = 15228115378821248, 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, 11958 + ... + 17818.

Almost surely, 2^87258568 is an apocalyptic number.

It is an amenable number.

87258568 is a deficient number, since it is larger than the sum of its proper divisors (76467092).

87258568 is a wasteful number, since it uses less digits than its factorization.

87258568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728 (or 7724 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 49.

The square root of 87258568 is about 9341.2294694007. The cubic root of 87258568 is about 443.5433039091.

The spelling of 87258568 in words is "eighty-seven million, two hundred fifty-eight thousand, five hundred sixty-eight".