91666792 has 64 divisors (see below), whose sum is σ = 209059200. Its totient is φ = 36806400.

The previous prime is 91666789. The next prime is 91666829. The reversal of 91666792 is 29766619.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107038 + ... + 107890.

It is an arithmetic number, because the mean of its divisors is an integer number (3266550).

Almost surely, 2^91666792 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 91666792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104529600).

91666792 is an abundant number, since it is smaller than the sum of its proper divisors (117392408).

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

91666792 is a wasteful number, since it uses less digits than its factorization.

91666792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 982 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The square root of 91666792 is about 9574.2776228810. The cubic root of 91666792 is about 450.8900769956.

The spelling of 91666792 in words is "ninety-one million, six hundred sixty-six thousand, seven hundred ninety-two".