91874256 has 120 divisors (see below), whose sum is σ = 260385120. Its totient is φ = 27887616.

The previous prime is 91874227. The next prime is 91874287. The reversal of 91874256 is 65247819.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513175 + ... + 513353.

It is an arithmetic number, because the mean of its divisors is an integer number (2169876).

Almost surely, 2^91874256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91874256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130192560).

91874256 is an abundant number, since it is smaller than the sum of its proper divisors (168510864).

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

91874256 is a wasteful number, since it uses less digits than its factorization.

91874256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 238 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 91874256 is about 9585.1059462063. The cubic root of 91874256 is about 451.2299782657.

The spelling of 91874256 in words is "ninety-one million, eight hundred seventy-four thousand, two hundred fifty-six".