91893966 has 16 divisors (see below), whose sum is σ = 184011264. Its totient is φ = 30594104.

The previous prime is 91893961. The next prime is 91894007. The reversal of 91893966 is 66939819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91893961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3696 + ... + 14051.

It is an arithmetic number, because the mean of its divisors is an integer number (11500704).

Almost surely, 2^91893966 is an apocalyptic number.

91893966 is an abundant number, since it is smaller than the sum of its proper divisors (92117298).

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

91893966 is a wasteful number, since it uses less digits than its factorization.

91893966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18615.

The product of its digits is 629856, while the sum is 51.

The square root of 91893966 is about 9586.1340487185. The cubic root of 91893966 is about 451.2622437676.

The spelling of 91893966 in words is "ninety-one million, eight hundred ninety-three thousand, nine hundred sixty-six".