89717539 has 4 divisors (see below), whose sum is σ = 89843040. Its totient is φ = 89592040.

The previous prime is 89717513. The next prime is 89717581. The reversal of 89717539 is 93571798.

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 89717539 - 2¹⁷ = 89586467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89717492 and 89717501.

It is not an unprimeable number, because it can be changed into a prime (89717339) 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, 61672 + ... + 63109.

It is an arithmetic number, because the mean of its divisors is an integer number (22460760).

Almost surely, 2^89717539 is an apocalyptic number.

89717539 is a deficient number, since it is larger than the sum of its proper divisors (125501).

89717539 is a wasteful number, since it uses less digits than its factorization.

89717539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125500.

The product of its digits is 476280, while the sum is 49.

The square root of 89717539 is about 9471.9342797551. The cubic root of 89717539 is about 447.6711603513.

The spelling of 89717539 in words is "eighty-nine million, seven hundred seventeen thousand, five hundred thirty-nine".