164686884 has 12 divisors (see below), whose sum is σ = 384269424. Its totient is φ = 54895624.

The previous prime is 164686859. The next prime is 164686903. The reversal of 164686884 is 488686461.

It is a tau number, because it is divible by the number of its divisors (12).

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, 6861942 + ... + 6861965.

It is an arithmetic number, because the mean of its divisors is an integer number (32022452).

Almost surely, 2^164686884 is an apocalyptic number.

It is an amenable number.

164686884 is an abundant number, since it is smaller than the sum of its proper divisors (219582540).

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

164686884 is a wasteful number, since it uses less digits than its factorization.

164686884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13723914 (or 13723912 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 164686884 is about 12833.0387671822. The cubic root of 164686884 is about 548.1334899549.

The spelling of 164686884 in words is "one hundred sixty-four million, six hundred eighty-six thousand, eight hundred eighty-four".