89722168 has 8 divisors (see below), whose sum is σ = 168229080. Its totient is φ = 44861080.

The previous prime is 89722147. The next prime is 89722177. The reversal of 89722168 is 86122798.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5607628 + ... + 5607643.

It is an arithmetic number, because the mean of its divisors is an integer number (21028635).

Almost surely, 2^89722168 is an apocalyptic number.

It is an amenable number.

89722168 is a deficient number, since it is larger than the sum of its proper divisors (78506912).

89722168 is a wasteful number, since it uses less digits than its factorization.

89722168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11215277 (or 11215273 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 89722168 is about 9472.1786300724. The cubic root of 89722168 is about 447.6788594559.

The spelling of 89722168 in words is "eighty-nine million, seven hundred twenty-two thousand, one hundred sixty-eight".