91694513 has 4 divisors (see below), whose sum is σ = 96520560. Its totient is φ = 86868468.

The previous prime is 91694489. The next prime is 91694521. The reversal of 91694513 is 31549619.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31549619 = 727 ⋅43397.

It is a cyclic number.

It is not a de Polignac number, because 91694513 - 2¹⁰ = 91693489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91690513) 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, 2412995 + ... + 2413032.

It is an arithmetic number, because the mean of its divisors is an integer number (24130140).

Almost surely, 2^91694513 is an apocalyptic number.

It is an amenable number.

91694513 is a deficient number, since it is larger than the sum of its proper divisors (4826047).

91694513 is a wasteful number, since it uses less digits than its factorization.

91694513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4826046.

The product of its digits is 29160, while the sum is 38.

The square root of 91694513 is about 9575.7251944696. The cubic root of 91694513 is about 450.9355237119.

The spelling of 91694513 in words is "ninety-one million, six hundred ninety-four thousand, five hundred thirteen".