89137499 has 4 divisors (see below), whose sum is σ = 97240920. Its totient is φ = 81034080.

The previous prime is 89137487. The next prime is 89137501. The reversal of 89137499 is 99473198.

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 89137499 - 2¹² = 89133403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89137469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4051694 + ... + 4051715.

It is an arithmetic number, because the mean of its divisors is an integer number (24310230).

Almost surely, 2^89137499 is an apocalyptic number.

89137499 is a deficient number, since it is larger than the sum of its proper divisors (8103421).

89137499 is a wasteful number, since it uses less digits than its factorization.

89137499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8103420.

The product of its digits is 489888, while the sum is 50.

The square root of 89137499 is about 9441.2657520059. The cubic root of 89137499 is about 446.7043155934.

The spelling of 89137499 in words is "eighty-nine million, one hundred thirty-seven thousand, four hundred ninety-nine".