89169664 has 36 divisors (see below), whose sum is σ = 184143960. Its totient is φ = 43043840.

The previous prime is 89169653. The next prime is 89169683. The reversal of 89169664 is 46696198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419 + ... + 13429.

It is an arithmetic number, because the mean of its divisors is an integer number (5115110).

Almost surely, 2^89169664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89169664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92071980).

89169664 is an abundant number, since it is smaller than the sum of its proper divisors (94974296).

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

89169664 is a wasteful number, since it uses less digits than its factorization.

89169664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12056 (or 12042 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 89169664 is about 9442.9690246236. The cubic root of 89169664 is about 446.7580397707.

The spelling of 89169664 in words is "eighty-nine million, one hundred sixty-nine thousand, six hundred sixty-four".