91522992 has 80 divisors (see below), whose sum is σ = 260733312. Its totient is φ = 27432960.

The previous prime is 91522967. The next prime is 91522999. The reversal of 91522992 is 29922519.

It is a self number, because there is not a number n which added to its sum of digits gives 91522992.

It is not an unprimeable number, because it can be changed into a prime (91522999) 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 15 ways as a sum of consecutive naturals, for example, 50323 + ... + 52109.

Almost surely, 2^91522992 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 91522992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130366656).

91522992 is an abundant number, since it is smaller than the sum of its proper divisors (169210320).

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

91522992 is a wasteful number, since it uses less digits than its factorization.

91522992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906 (or 1900 counting only the distinct ones).

The product of its digits is 29160, while the sum is 39.

The square root of 91522992 is about 9566.7649704589. The cubic root of 91522992 is about 450.6541794018.

The spelling of 91522992 in words is "ninety-one million, five hundred twenty-two thousand, nine hundred ninety-two".