89636091 has 16 divisors (see below), whose sum is σ = 128183040. Its totient is φ = 55542240.

The previous prime is 89636069. The next prime is 89636093. The reversal of 89636091 is 19063698.

It is not a de Polignac number, because 89636091 - 2²² = 85441787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89636093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11815 + ... + 17856.

It is an arithmetic number, because the mean of its divisors is an integer number (8011440).

Almost surely, 2^89636091 is an apocalyptic number.

89636091 is a deficient number, since it is larger than the sum of its proper divisors (38546949).

89636091 is a wasteful number, since it uses less digits than its factorization.

89636091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29746.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 89636091 is about 9467.6338649105. The cubic root of 89636091 is about 447.5356500213.

The spelling of 89636091 in words is "eighty-nine million, six hundred thirty-six thousand, ninety-one".