89639168 has 36 divisors (see below), whose sum is σ = 179544960. Its totient is φ = 44665344.

The previous prime is 89639159. The next prime is 89639177. The reversal of 89639168 is 86193698.

It is an interprime number because it is at equal distance from previous prime (89639159) and next prime (89639177).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124313 + ... + 125031.

It is an arithmetic number, because the mean of its divisors is an integer number (4987360).

Almost surely, 2^89639168 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 89639168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89772480).

89639168 is an abundant number, since it is smaller than the sum of its proper divisors (89905792).

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

89639168 is an equidigital number, since it uses as much as digits as its factorization.

89639168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1208 counting only the distinct ones).

The product of its digits is 559872, while the sum is 50.

The square root of 89639168 is about 9467.7963645190. The cubic root of 89639168 is about 447.5407709178.

The spelling of 89639168 in words is "eighty-nine million, six hundred thirty-nine thousand, one hundred sixty-eight".