91965868 has 24 divisors (see below), whose sum is σ = 172482912. Its totient is φ = 42793344.

The previous prime is 91965859. The next prime is 91965883. The reversal of 91965868 is 86856919.

It is a super-3 number, since 3×91965868³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10105 + ... + 16912.

It is an arithmetic number, because the mean of its divisors is an integer number (7186788).

Almost surely, 2^91965868 is an apocalyptic number.

It is an amenable number.

91965868 is a deficient number, since it is larger than the sum of its proper divisors (80517044).

91965868 is a wasteful number, since it uses less digits than its factorization.

91965868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27081 (or 27079 counting only the distinct ones).

The product of its digits is 933120, while the sum is 52.

The square root of 91965868 is about 9589.8836280739. The cubic root of 91965868 is about 451.3799090884.

The spelling of 91965868 in words is "ninety-one million, nine hundred sixty-five thousand, eight hundred sixty-eight".