89628879 has 16 divisors (see below), whose sum is σ = 130900320. Its totient is φ = 54297600.

The previous prime is 89628823. The next prime is 89628881. The reversal of 89628879 is 97882698.

It is not a de Polignac number, because 89628879 - 2⁷ = 89628751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89628179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28822 + ... + 31779.

It is an arithmetic number, because the mean of its divisors is an integer number (8181270).

Almost surely, 2^89628879 is an apocalyptic number.

89628879 is a deficient number, since it is larger than the sum of its proper divisors (41271441).

89628879 is a wasteful number, since it uses less digits than its factorization.

89628879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60650.

The product of its digits is 3483648, while the sum is 57.

The square root of 89628879 is about 9467.2529806697. The cubic root of 89628879 is about 447.5236469928.

The spelling of 89628879 in words is "eighty-nine million, six hundred twenty-eight thousand, eight hundred seventy-nine".