87158730 has 32 divisors (see below), whose sum is σ = 218277504. Its totient is φ = 22231616.

The previous prime is 87158663. The next prime is 87158741. The reversal of 87158730 is 3785178.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62469 + ... + 63848.

It is an arithmetic number, because the mean of its divisors is an integer number (6821172).

Almost surely, 2^87158730 is an apocalyptic number.

87158730 is an abundant number, since it is smaller than the sum of its proper divisors (131118774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87158730 is a wasteful number, since it uses less digits than its factorization.

87158730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126350.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 87158730 is about 9335.8839967086. The cubic root of 87158730 is about 443.3740774483.

The spelling of 87158730 in words is "eighty-seven million, one hundred fifty-eight thousand, seven hundred thirty".