91695497 has 4 divisors (see below), whose sum is σ = 91715076. Its totient is φ = 91675920.

The previous prime is 91695491. The next prime is 91695511. The reversal of 91695497 is 79459619.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43309561 + 48385936 = 6581^2 + 6956^2 .

It is a cyclic number.

It is not a de Polignac number, because 91695497 - 2²⁰ = 90646921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91695491) 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, 1847 + ... + 13667.

It is an arithmetic number, because the mean of its divisors is an integer number (22928769).

Almost surely, 2^91695497 is an apocalyptic number.

It is an amenable number.

91695497 is a deficient number, since it is larger than the sum of its proper divisors (19579).

91695497 is a wasteful number, since it uses less digits than its factorization.

91695497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19578.

The product of its digits is 612360, while the sum is 50.

The square root of 91695497 is about 9575.7765742523. The cubic root of 91695497 is about 450.9371367454.

The spelling of 91695497 in words is "ninety-one million, six hundred ninety-five thousand, four hundred ninety-seven".