91468720 has 40 divisors (see below), whose sum is σ = 243046944. Its totient is φ = 31360512.

The previous prime is 91468673. The next prime is 91468747. The reversal of 91468720 is 2786419.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 91468720.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81109 + ... + 82228.

Almost surely, 2^91468720 is an apocalyptic number.

It is an amenable number.

91468720 is an abundant number, since it is smaller than the sum of its proper divisors (151578224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91468720 is a wasteful number, since it uses less digits than its factorization.

91468720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163357 (or 163351 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 91468720 is about 9563.9280633012. The cubic root of 91468720 is about 450.5650843410.

The spelling of 91468720 in words is "ninety-one million, four hundred sixty-eight thousand, seven hundred twenty".