91516088 has 8 divisors (see below), whose sum is σ = 171592680. Its totient is φ = 45758040.

The previous prime is 91516081. The next prime is 91516093. The reversal of 91516088 is 88061519.

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 (91516081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5719748 + ... + 5719763.

It is an arithmetic number, because the mean of its divisors is an integer number (21449085).

Almost surely, 2^91516088 is an apocalyptic number.

It is an amenable number.

91516088 is a deficient number, since it is larger than the sum of its proper divisors (80076592).

91516088 is a wasteful number, since it uses less digits than its factorization.

91516088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439517 (or 11439513 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 91516088 is about 9566.4041311247. The cubic root of 91516088 is about 450.6428474781.

The spelling of 91516088 in words is "ninety-one million, five hundred sixteen thousand, eighty-eight".