87258507 has 32 divisors (see below), whose sum is σ = 140574720. Its totient is φ = 47031840.

The previous prime is 87258499. The next prime is 87258529. The reversal of 87258507 is 70585278.

It is a happy number.

It is not a de Polignac number, because 87258507 - 2³ = 87258499 is a prime.

It is a super-2 number, since 2×87258507² = 15228094087738098, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (87258547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152532 + ... + 153102.

It is an arithmetic number, because the mean of its divisors is an integer number (4392960).

Almost surely, 2^87258507 is an apocalyptic number.

87258507 is a deficient number, since it is larger than the sum of its proper divisors (53316213).

87258507 is a wasteful number, since it uses less digits than its factorization.

87258507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983.

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 87258507 is about 9341.2262043053. The cubic root of 87258507 is about 443.5432005528.

The spelling of 87258507 in words is "eighty-seven million, two hundred fifty-eight thousand, five hundred seven".