91320484 has 24 divisors (see below), whose sum is σ = 165146688. Its totient is φ = 44160480.

The previous prime is 91320469. The next prime is 91320491. The reversal of 91320484 is 48402319.

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, 12019 + ... + 18085.

It is an arithmetic number, because the mean of its divisors is an integer number (6881112).

Almost surely, 2^91320484 is an apocalyptic number.

It is an amenable number.

91320484 is a deficient number, since it is larger than the sum of its proper divisors (73826204).

91320484 is a wasteful number, since it uses less digits than its factorization.

91320484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195 (or 6193 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 91320484 is about 9556.1751762931. The cubic root of 91320484 is about 450.3215545356.

The spelling of 91320484 in words is "ninety-one million, three hundred twenty thousand, four hundred eighty-four".