89856239 has 32 divisors (see below), whose sum is σ = 109002240. Its totient is φ = 73180800.

The previous prime is 89856229. The next prime is 89856257. The reversal of 89856239 is 93265898.

It is not a de Polignac number, because 89856239 - 2¹² = 89852143 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 (89856209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271304 + ... + 271634.

It is an arithmetic number, because the mean of its divisors is an integer number (3406320).

Almost surely, 2^89856239 is an apocalyptic number.

89856239 is a deficient number, since it is larger than the sum of its proper divisors (19146001).

89856239 is a wasteful number, since it uses less digits than its factorization.

89856239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431.

The product of its digits is 933120, while the sum is 50.

The square root of 89856239 is about 9479.2530823900. The cubic root of 89856239 is about 447.9017359287.

The spelling of 89856239 in words is "eighty-nine million, eight hundred fifty-six thousand, two hundred thirty-nine".