128804764 has 24 divisors (see below), whose sum is σ = 246275568. Its totient is φ = 58458240.

The previous prime is 128804717. The next prime is 128804779. The reversal of 128804764 is 467408821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33232 + ... + 36904.

It is an arithmetic number, because the mean of its divisors is an integer number (10261482).

Almost surely, 2^128804764 is an apocalyptic number.

It is an amenable number.

128804764 is a deficient number, since it is larger than the sum of its proper divisors (117470804).

128804764 is a wasteful number, since it uses less digits than its factorization.

128804764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4485 (or 4483 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 128804764 is about 11349.2186515196. The cubic root of 128804764 is about 505.0224007317.

The spelling of 128804764 in words is "one hundred twenty-eight million, eight hundred four thousand, seven hundred sixty-four".