128804684 has 12 divisors (see below), whose sum is σ = 226845024. Its totient is φ = 63991824.

The previous prime is 128804677. The next prime is 128804713. The reversal of 128804684 is 486408821.

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, 101924 + ... + 103179.

It is an arithmetic number, because the mean of its divisors is an integer number (18903752).

Almost surely, 2^128804684 is an apocalyptic number.

It is an amenable number.

128804684 is a deficient number, since it is larger than the sum of its proper divisors (98040340).

128804684 is a wasteful number, since it uses less digits than its factorization.

128804684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205264 (or 205262 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 41.

The square root of 128804684 is about 11349.2151270473. The cubic root of 128804684 is about 505.0222961760.

The spelling of 128804684 in words is "one hundred twenty-eight million, eight hundred four thousand, six hundred eighty-four".