128976908 has 6 divisors (see below), whose sum is σ = 225709596. Its totient is φ = 64488452.

The previous prime is 128976889. The next prime is 128976919. The reversal of 128976908 is 809679821.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16122110 + ... + 16122117.

It is an arithmetic number, because the mean of its divisors is an integer number (37618266).

Almost surely, 2^128976908 is an apocalyptic number.

It is an amenable number.

128976908 is a deficient number, since it is larger than the sum of its proper divisors (96732688).

128976908 is a wasteful number, since it uses less digits than its factorization.

128976908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32244231 (or 32244229 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 128976908 is about 11356.8000774866. The cubic root of 128976908 is about 505.2472833958.

The spelling of 128976908 in words is "one hundred twenty-eight million, nine hundred seventy-six thousand, nine hundred eight".