91694071 has 4 divisors (see below), whose sum is σ = 104793232. Its totient is φ = 78594912.

The previous prime is 91694069. The next prime is 91694111. The reversal of 91694071 is 17049619.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91694071 - 2¹ = 91694069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91694071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91694011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6549570 + ... + 6549583.

It is an arithmetic number, because the mean of its divisors is an integer number (26198308).

Almost surely, 2^91694071 is an apocalyptic number.

91694071 is a deficient number, since it is larger than the sum of its proper divisors (13099161).

91694071 is a wasteful number, since it uses less digits than its factorization.

91694071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13099160.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 91694071 is about 9575.7021152498. The cubic root of 91694071 is about 450.9347991545.

The spelling of 91694071 in words is "ninety-one million, six hundred ninety-four thousand, seventy-one".