89115788 has 6 divisors (see below), whose sum is σ = 155952636. Its totient is φ = 44557892.

The previous prime is 89115787. The next prime is 89115809. The reversal of 89115788 is 88751198.

It is not an unprimeable number, because it can be changed into a prime (89115787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11139470 + ... + 11139477.

It is an arithmetic number, because the mean of its divisors is an integer number (25992106).

Almost surely, 2^89115788 is an apocalyptic number.

It is an amenable number.

89115788 is a deficient number, since it is larger than the sum of its proper divisors (66836848).

89115788 is a wasteful number, since it uses less digits than its factorization.

89115788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22278951 (or 22278949 counting only the distinct ones).

The product of its digits is 161280, while the sum is 47.

The square root of 89115788 is about 9440.1158891192. The cubic root of 89115788 is about 446.6680450936.

The spelling of 89115788 in words is "eighty-nine million, one hundred fifteen thousand, seven hundred eighty-eight".