91374720 has 64 divisors (see below), whose sum is σ = 291263040. Its totient is φ = 24366080.

The previous prime is 91374713. The next prime is 91374733. The reversal of 91374720 is 2747319.

It is a tau number, because it is divible by the number of its divisors (64).

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, 21876 + ... + 25715.

It is an arithmetic number, because the mean of its divisors is an integer number (4550985).

Almost surely, 2^91374720 is an apocalyptic number.

It is an amenable number.

91374720 is an abundant number, since it is smaller than the sum of its proper divisors (199888320).

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

91374720 is a wasteful number, since it uses less digits than its factorization.

91374720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47613 (or 47601 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 91374720 is about 9559.0125012995. The cubic root of 91374720 is about 450.4106868063.

The spelling of 91374720 in words is "ninety-one million, three hundred seventy-four thousand, seven hundred twenty".