91751364 has 36 divisors (see below), whose sum is σ = 235110876. Its totient is φ = 30163968.

The previous prime is 91751339. The next prime is 91751377. The reversal of 91751364 is 46315719.

It can be written as a sum of positive squares in 2 ways, for example, as 48191364 + 43560000 = 6942^2 + 6600^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14829 + ... + 20084.

Almost surely, 2^91751364 is an apocalyptic number.

It is an amenable number.

91751364 is an abundant number, since it is smaller than the sum of its proper divisors (143359512).

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

91751364 is a wasteful number, since it uses less digits than its factorization.

91751364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34996 (or 34991 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 91751364 is about 9578.6932302898. The cubic root of 91751364 is about 451.0286984588.

The spelling of 91751364 in words is "ninety-one million, seven hundred fifty-one thousand, three hundred sixty-four".