91980468 has 24 divisors (see below), whose sum is σ = 238468160. Its totient is φ = 30660120.

The previous prime is 91980451. The next prime is 91980527. The reversal of 91980468 is 86408919.

It is a congruent number.

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, 425728 + ... + 425943.

Almost surely, 2^91980468 is an apocalyptic number.

It is an amenable number.

91980468 is an abundant number, since it is smaller than the sum of its proper divisors (146487692).

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

91980468 is a wasteful number, since it uses less digits than its factorization.

91980468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851684 (or 851676 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 91980468 is about 9590.6448166951. The cubic root of 91980468 is about 451.4037940292.

The spelling of 91980468 in words is "ninety-one million, nine hundred eighty thousand, four hundred sixty-eight".