87897164 has 12 divisors (see below), whose sum is σ = 155232000. Its totient is φ = 43545168.

The previous prime is 87897151. The next prime is 87897181. The reversal of 87897164 is 46179878.

It is a super-2 number, since 2×87897164² = 15451822878485792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100364 + ... + 101235.

It is an arithmetic number, because the mean of its divisors is an integer number (12936000).

Almost surely, 2^87897164 is an apocalyptic number.

It is an amenable number.

87897164 is a deficient number, since it is larger than the sum of its proper divisors (67334836).

87897164 is a wasteful number, since it uses less digits than its factorization.

87897164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201712 (or 201710 counting only the distinct ones).

The product of its digits is 677376, while the sum is 50.

The square root of 87897164 is about 9375.3487401803. The cubic root of 87897164 is about 444.6226890517.

The spelling of 87897164 in words is "eighty-seven million, eight hundred ninety-seven thousand, one hundred sixty-four".