91957652 has 12 divisors (see below), whose sum is σ = 162193920. Its totient is φ = 45616536.

The previous prime is 91957651. The next prime is 91957667. The reversal of 91957652 is 25675919.

It is a happy number.

It is a super-2 number, since 2×91957652² = 16912419522706208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91957651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90002 + ... + 91017.

It is an arithmetic number, because the mean of its divisors is an integer number (13516160).

Almost surely, 2^91957652 is an apocalyptic number.

It is an amenable number.

91957652 is a deficient number, since it is larger than the sum of its proper divisors (70236268).

91957652 is a wasteful number, since it uses less digits than its factorization.

91957652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181150 (or 181148 counting only the distinct ones).

The product of its digits is 170100, while the sum is 44.

The square root of 91957652 is about 9589.4552504300. The cubic root of 91957652 is about 451.3664669717.

The spelling of 91957652 in words is "ninety-one million, nine hundred fifty-seven thousand, six hundred fifty-two".