91364772 has 24 divisors (see below), whose sum is σ = 213757600. Its totient is φ = 30373056.

The previous prime is 91364759. The next prime is 91364773. The reversal of 91364772 is 27746319.

It is a super-2 number, since 2×91364772² = 16695043125223968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91364772.

It is not an unprimeable number, because it can be changed into a prime (91364773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5497 + ... + 14592.

Almost surely, 2^91364772 is an apocalyptic number.

It is an amenable number.

91364772 is an abundant number, since it is smaller than the sum of its proper divisors (122392828).

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

91364772 is a wasteful number, since it uses less digits than its factorization.

91364772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20475 (or 20473 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 91364772 is about 9558.4921405000. The cubic root of 91364772 is about 450.3943407530.

The spelling of 91364772 in words is "ninety-one million, three hundred sixty-four thousand, seven hundred seventy-two".