91670675 has 6 divisors (see below), whose sum is σ = 113671668. Its totient is φ = 73336520.

The previous prime is 91670669. The next prime is 91670701. The reversal of 91670675 is 57607619.

It is not a de Polignac number, because 91670675 - 2⁴ = 91670659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1833389 + ... + 1833438.

It is an arithmetic number, because the mean of its divisors is an integer number (18945278).

Almost surely, 2^91670675 is an apocalyptic number.

91670675 is a deficient number, since it is larger than the sum of its proper divisors (22000993).

91670675 is a wasteful number, since it uses less digits than its factorization.

91670675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666837 (or 3666832 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 91670675 is about 9574.4804036564. The cubic root of 91670675 is about 450.8964434649.

It can be divided in two parts, 91670 and 675, that multiplied together give a triangular number (61877250 = T₁₁₁₂₄).

The spelling of 91670675 in words is "ninety-one million, six hundred seventy thousand, six hundred seventy-five".