89915768 has 8 divisors (see below), whose sum is σ = 168592080. Its totient is φ = 44957880.

The previous prime is 89915767. The next prime is 89915783. The reversal of 89915768 is 86751998.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89915767) by changing a digit.

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 as a sum of consecutive naturals, namely, 5619728 + ... + 5619743.

It is an arithmetic number, because the mean of its divisors is an integer number (21074010).

Almost surely, 2^89915768 is an apocalyptic number.

It is an amenable number.

89915768 is a deficient number, since it is larger than the sum of its proper divisors (78676312).

89915768 is a wasteful number, since it uses less digits than its factorization.

89915768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11239477 (or 11239473 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 53.

The square root of 89915768 is about 9482.3925250962. The cubic root of 89915768 is about 448.0006244677. Note that the first 3 decimals are identical.

The spelling of 89915768 in words is "eighty-nine million, nine hundred fifteen thousand, seven hundred sixty-eight".