91666675 has 12 divisors (see below), whose sum is σ = 113829520. Its totient is φ = 73228320.

The previous prime is 91666667. The next prime is 91666727. The reversal of 91666675 is 57666619.

It is not a de Polignac number, because 91666675 - 2³ = 91666667 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18514 + ... + 22936.

Almost surely, 2^91666675 is an apocalyptic number.

91666675 is a deficient number, since it is larger than the sum of its proper divisors (22162845).

91666675 is a wasteful number, since it uses less digits than its factorization.

91666675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262 (or 5257 counting only the distinct ones).

The product of its digits is 408240, while the sum is 46.

The square root of 91666675 is about 9574.2715127575. The cubic root of 91666675 is about 450.8898851625.

The spelling of 91666675 in words is "ninety-one million, six hundred sixty-six thousand, six hundred seventy-five".