87667170 has 32 divisors (see below), whose sum is σ = 210755520. Its totient is φ = 23338560.

The previous prime is 87667123. The next prime is 87667183. The reversal of 87667170 is 7176678.

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, 18616 + ... + 22844.

It is an arithmetic number, because the mean of its divisors is an integer number (6586110).

Almost surely, 2^87667170 is an apocalyptic number.

87667170 is an abundant number, since it is smaller than the sum of its proper divisors (123088350).

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

87667170 is a wasteful number, since it uses less digits than its factorization.

87667170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 87667170 is about 9363.0748154653. The cubic root of 87667170 is about 444.2345465584.

The spelling of 87667170 in words is "eighty-seven million, six hundred sixty-seven thousand, one hundred seventy".