89631359 has 4 divisors (see below), whose sum is σ = 89653104. Its totient is φ = 89609616.

The previous prime is 89631349. The next prime is 89631389. The reversal of 89631359 is 95313698.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95313698 = 2 ⋅47656849.

It is a cyclic number.

It is not a de Polignac number, because 89631359 - 2²⁴ = 72854143 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 (89631319) 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, 2582 + ... + 13635.

It is an arithmetic number, because the mean of its divisors is an integer number (22413276).

Almost surely, 2^89631359 is an apocalyptic number.

89631359 is a deficient number, since it is larger than the sum of its proper divisors (21745).

89631359 is a wasteful number, since it uses less digits than its factorization.

89631359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21744.

The product of its digits is 174960, while the sum is 44.

The square root of 89631359 is about 9467.3839575672. The cubic root of 89631359 is about 447.5277745627.

The spelling of 89631359 in words is "eighty-nine million, six hundred thirty-one thousand, three hundred fifty-nine".