128606828 has 24 divisors (see below), whose sum is σ = 257913600. Its totient is φ = 54967248.

The previous prime is 128606827. The next prime is 128606833. The reversal of 128606828 is 828606821.

It is not an unprimeable number, because it can be changed into a prime (128606827) 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, 4553 + ... + 16671.

It is an arithmetic number, because the mean of its divisors is an integer number (10746400).

Almost surely, 2^128606828 is an apocalyptic number.

It is an amenable number.

128606828 is an abundant number, since it is smaller than the sum of its proper divisors (129306772).

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

128606828 is a wasteful number, since it uses less digits than its factorization.

128606828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12509 (or 12507 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 128606828 is about 11340.4950509226. The cubic root of 128606828 is about 504.7635765522.

The spelling of 128606828 in words is "one hundred twenty-eight million, six hundred six thousand, eight hundred twenty-eight".