91088048 has 20 divisors (see below), whose sum is σ = 177049680. Its totient is φ = 45397824.

The previous prime is 91088047. The next prime is 91088051. The reversal of 91088048 is 84088019.

It is not an unprimeable number, because it can be changed into a prime (91088047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3908 + ... + 14051.

It is an arithmetic number, because the mean of its divisors is an integer number (8852484).

Almost surely, 2^91088048 is an apocalyptic number.

It is an amenable number.

91088048 is a deficient number, since it is larger than the sum of its proper divisors (85961632).

91088048 is a wasteful number, since it uses less digits than its factorization.

91088048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18284 (or 18278 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 91088048 is about 9544.0058675590. The cubic root of 91088048 is about 449.9391654388.

The spelling of 91088048 in words is "ninety-one million, eighty-eight thousand, forty-eight".