89712599 has 4 divisors (see below), whose sum is σ = 90397560. Its totient is φ = 89027640.

The previous prime is 89712593. The next prime is 89712619. The reversal of 89712599 is 99521798.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89712599 - 2²⁴ = 72935383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89712593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342284 + ... + 342545.

It is an arithmetic number, because the mean of its divisors is an integer number (22599390).

Almost surely, 2^89712599 is an apocalyptic number.

89712599 is a deficient number, since it is larger than the sum of its proper divisors (684961).

89712599 is a wasteful number, since it uses less digits than its factorization.

89712599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684960.

The product of its digits is 408240, while the sum is 50.

The square root of 89712599 is about 9471.6735057750. The cubic root of 89712599 is about 447.6629436891.

The spelling of 89712599 in words is "eighty-nine million, seven hundred twelve thousand, five hundred ninety-nine".