91956 has 24 divisors (see below), whose sum is σ = 219520. Its totient is φ = 29952.

The previous prime is 91951. The next prime is 91957. The reversal of 91956 is 65919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91951) by changing a digit.

91956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900 + ... + 996.

2⁹¹⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

91956 is an abundant number, since it is smaller than the sum of its proper divisors (127564).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109760).

91956 is a wasteful number, since it uses less digits than its factorization.

91956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 181 counting only the distinct ones).

The product of its digits is 2430, while the sum is 30.

The square root of 91956 is about 303.2424772356. The cubic root of 91956 is about 45.1363764054.

The spelling of 91956 in words is "ninety-one thousand, nine hundred fifty-six".