128795583 has 32 divisors (see below), whose sum is σ = 206415360. Its totient is φ = 69874560.

The previous prime is 128795581. The next prime is 128795603. The reversal of 128795583 is 385597821.

It is not a de Polignac number, because 128795583 - 2¹ = 128795581 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128795581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35416 + ... + 38882.

It is an arithmetic number, because the mean of its divisors is an integer number (6450480).

Almost surely, 2^128795583 is an apocalyptic number.

128795583 is a deficient number, since it is larger than the sum of its proper divisors (77619777).

128795583 is a wasteful number, since it uses less digits than its factorization.

128795583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567.

The product of its digits is 604800, while the sum is 48.

The square root of 128795583 is about 11348.8141671278. The cubic root of 128795583 is about 505.0104013804.

The spelling of 128795583 in words is "one hundred twenty-eight million, seven hundred ninety-five thousand, five hundred eighty-three".