128797676 has 18 divisors (see below), whose sum is σ = 262195668. Its totient is φ = 55198920.

The previous prime is 128797663. The next prime is 128797741. The reversal of 128797676 is 676797821.

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 5 ways as a sum of consecutive naturals, for example, 328370 + ... + 328761.

It is an arithmetic number, because the mean of its divisors is an integer number (14566426).

Almost surely, 2^128797676 is an apocalyptic number.

It is an amenable number.

128797676 is an abundant number, since it is smaller than the sum of its proper divisors (133397992).

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

128797676 is a wasteful number, since it uses less digits than its factorization.

128797676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657149 (or 657140 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 53.

The square root of 128797676 is about 11348.9063790305. The cubic root of 128797676 is about 505.0131369324.

The spelling of 128797676 in words is "one hundred twenty-eight million, seven hundred ninety-seven thousand, six hundred seventy-six".