91322952 has 64 divisors (see below), whose sum is σ = 262154880. Its totient is φ = 25969152.

The previous prime is 91322951. The next prime is 91322953. The reversal of 91322952 is 25922319.

It is an interprime number because it is at equal distance from previous prime (91322951) and next prime (91322953).

It is not an unprimeable number, because it can be changed into a prime (91322951) 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, 37978 + ... + 40310.

It is an arithmetic number, because the mean of its divisors is an integer number (4096170).

Almost surely, 2^91322952 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 91322952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131077440).

91322952 is an abundant number, since it is smaller than the sum of its proper divisors (170831928).

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

91322952 is a wasteful number, since it uses less digits than its factorization.

91322952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582 (or 2578 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 91322952 is about 9556.3043065821. The cubic root of 91322952 is about 450.3256112508.

The spelling of 91322952 in words is "ninety-one million, three hundred twenty-two thousand, nine hundred fifty-two".