91371264 has 36 divisors (see below), whose sum is σ = 243182856. Its totient is φ = 30456832.

The previous prime is 91371263. The next prime is 91371283. The reversal of 91371264 is 46217319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91371263) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 58719 + ... + 60254.

Almost surely, 2^91371264 is an apocalyptic number.

It is an amenable number.

91371264 is an abundant number, since it is smaller than the sum of its proper divisors (151811592).

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

91371264 is a wasteful number, since it uses less digits than its factorization.

91371264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118992 (or 118978 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 91371264 is about 9558.8317277793. The cubic root of 91371264 is about 450.4050082154.

It can be divided in two parts, 9137 and 1264, that added together give a palindrome (10401).

The spelling of 91371264 in words is "ninety-one million, three hundred seventy-one thousand, two hundred sixty-four".