89989056 has 70 divisors (see below), whose sum is σ = 266771120. Its totient is φ = 29994624.

The previous prime is 89989051. The next prime is 89989061. The reversal of 89989056 is 65098998.

It is an interprime number because it is at equal distance from previous prime (89989051) and next prime (89989061).

It is a super-2 number, since 2×89989056² = 16196060399542272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 89988993 and 89989011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89989051) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3496 + ... + 13863.

It is an arithmetic number, because the mean of its divisors is an integer number (3811016).

Almost surely, 2^89989056 is an apocalyptic number.

It is an amenable number.

89989056 is an abundant number, since it is smaller than the sum of its proper divisors (176782064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89989056 is a wasteful number, since it uses less digits than its factorization.

89989056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17383 (or 17364 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 89989056 is about 9486.2561635242. The cubic root of 89989056 is about 448.1223092922.

The spelling of 89989056 in words is "eighty-nine million, nine hundred eighty-nine thousand, fifty-six".