91666676 has 6 divisors (see below), whose sum is σ = 160416690. Its totient is φ = 45833336.

The previous prime is 91666667. The next prime is 91666727. The reversal of 91666676 is 67666619.

It can be written as a sum of positive squares in only one way, i.e., 76143076 + 15523600 = 8726^2 + 3940^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91666676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11458331 + ... + 11458338.

It is an arithmetic number, because the mean of its divisors is an integer number (26736115).

Almost surely, 2^91666676 is an apocalyptic number.

It is an amenable number.

91666676 is a deficient number, since it is larger than the sum of its proper divisors (68750014).

91666676 is a wasteful number, since it uses less digits than its factorization.

91666676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22916673 (or 22916671 counting only the distinct ones).

The product of its digits is 489888, while the sum is 47.

The square root of 91666676 is about 9574.2715649808. The cubic root of 91666676 is about 450.8898868021.

The spelling of 91666676 in words is "ninety-one million, six hundred sixty-six thousand, six hundred seventy-six".