89913579 has 12 divisors (see below), whose sum is σ = 139458024. Its totient is φ = 51379104.

The previous prime is 89913557. The next prime is 89913623. The reversal of 89913579 is 97531998.

It is a happy number.

It is not a de Polignac number, because 89913579 - 2⁹ = 89913067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89913479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305682 + ... + 305975.

It is an arithmetic number, because the mean of its divisors is an integer number (11621502).

Almost surely, 2^89913579 is an apocalyptic number.

89913579 is a deficient number, since it is larger than the sum of its proper divisors (49544445).

89913579 is a wasteful number, since it uses less digits than its factorization.

89913579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611674 (or 611667 counting only the distinct ones).

The product of its digits is 612360, while the sum is 51.

The square root of 89913579 is about 9482.2770999375. The cubic root of 89913579 is about 447.9969889121.

The spelling of 89913579 in words is "eighty-nine million, nine hundred thirteen thousand, five hundred seventy-nine".