128573896 has 32 divisors (see below), whose sum is σ = 263800800. Its totient is φ = 58263040.

The previous prime is 128573869. The next prime is 128573897. The reversal of 128573896 is 698375821.

It is not an unprimeable number, because it can be changed into a prime (128573897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28995 + ... + 33133.

It is an arithmetic number, because the mean of its divisors is an integer number (8243775).

Almost surely, 2^128573896 is an apocalyptic number.

It is an amenable number.

128573896 is an abundant number, since it is smaller than the sum of its proper divisors (135226904).

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

128573896 is a wasteful number, since it uses less digits than its factorization.

128573896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509 (or 4505 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 128573896 is about 11339.0429931278. The cubic root of 128573896 is about 504.7204883963.

The spelling of 128573896 in words is "one hundred twenty-eight million, five hundred seventy-three thousand, eight hundred ninety-six".