89508999 has 4 divisors (see below), whose sum is σ = 119345336. Its totient is φ = 59672664.

The previous prime is 89508983. The next prime is 89509003. The reversal of 89508999 is 99980598.

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

It is not a de Polignac number, because 89508999 - 2⁴ = 89508983 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 (89501999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14918164 + ... + 14918169.

It is an arithmetic number, because the mean of its divisors is an integer number (29836334).

Almost surely, 2^89508999 is an apocalyptic number.

89508999 is a deficient number, since it is larger than the sum of its proper divisors (29836337).

89508999 is a wasteful number, since it uses less digits than its factorization.

89508999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29836336.

The product of its (nonzero) digits is 2099520, while the sum is 57.

The square root of 89508999 is about 9460.9195641861. The cubic root of 89508999 is about 447.3240347248.

The spelling of 89508999 in words is "eighty-nine million, five hundred eight thousand, nine hundred ninety-nine".