91371952 has 20 divisors (see below), whose sum is σ = 202323856. Its totient is φ = 39159360.

The previous prime is 91371937. The next prime is 91371979. The reversal of 91371952 is 25917319.

It is a super-2 number, since 2×91371952² = 16697667224580608, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 407799 + ... + 408022.

Almost surely, 2^91371952 is an apocalyptic number.

It is an amenable number.

91371952 is an abundant number, since it is smaller than the sum of its proper divisors (110951904).

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

91371952 is a wasteful number, since it uses less digits than its factorization.

91371952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815836 (or 815830 counting only the distinct ones).

The product of its digits is 17010, while the sum is 37.

The square root of 91371952 is about 9558.8677153730. The cubic root of 91371952 is about 450.4061386870.

The spelling of 91371952 in words is "ninety-one million, three hundred seventy-one thousand, nine hundred fifty-two".