128892795 has 16 divisors (see below), whose sum is σ = 206636832. Its totient is φ = 68606720.

The previous prime is 128892787. The next prime is 128892811. The reversal of 128892795 is 597298821.

It is not a de Polignac number, because 128892795 - 2³ = 128892787 is a prime.

It is a super-2 number, since 2×128892795² = 33226705205824050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432 + ... + 16061.

It is an arithmetic number, because the mean of its divisors is an integer number (12914802).

Almost surely, 2^128892795 is an apocalyptic number.

128892795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128892795 is a deficient number, since it is larger than the sum of its proper divisors (77744037).

128892795 is a wasteful number, since it uses less digits than its factorization.

128892795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17022.

The product of its digits is 725760, while the sum is 51.

The square root of 128892795 is about 11353.0962737044. The cubic root of 128892795 is about 505.1374262460.

The spelling of 128892795 in words is "one hundred twenty-eight million, eight hundred ninety-two thousand, seven hundred ninety-five".