128933607 has 24 divisors (see below), whose sum is σ = 197188992. Its totient is φ = 74739280.

The previous prime is 128933587. The next prime is 128933617. The reversal of 128933607 is 706339821.

It is not a de Polignac number, because 128933607 - 2⁶ = 128933543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128933617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 628 + ... + 16070.

It is an arithmetic number, because the mean of its divisors is an integer number (8216208).

Almost surely, 2^128933607 is an apocalyptic number.

128933607 is a deficient number, since it is larger than the sum of its proper divisors (68255385).

128933607 is a wasteful number, since it uses less digits than its factorization.

128933607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15491 (or 15480 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 128933607 is about 11354.8935265814. The cubic root of 128933607 is about 505.1907353885.

The spelling of 128933607 in words is "one hundred twenty-eight million, nine hundred thirty-three thousand, six hundred seven".