89517499 has 4 divisors (see below), whose sum is σ = 89558080. Its totient is φ = 89476920.

The previous prime is 89517487. The next prime is 89517503. The reversal of 89517499 is 99471598.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89517499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89517419) 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, 16779 + ... + 21460.

It is an arithmetic number, because the mean of its divisors is an integer number (22389520).

Almost surely, 2^89517499 is an apocalyptic number.

89517499 is a deficient number, since it is larger than the sum of its proper divisors (40581).

89517499 is a wasteful number, since it uses less digits than its factorization.

89517499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40580.

The product of its digits is 816480, while the sum is 52.

The square root of 89517499 is about 9461.3687698979. The cubic root of 89517499 is about 447.3381939490.

The spelling of 89517499 in words is "eighty-nine million, five hundred seventeen thousand, four hundred ninety-nine".