91694481 has 16 divisors (see below), whose sum is σ = 130079808. Its totient is φ = 57254400.

The previous prime is 91694467. The next prime is 91694489. The reversal of 91694481 is 18449619.

It is not a de Polignac number, because 91694481 - 2⁶ = 91694417 is a prime.

It is a super-2 number, since 2×91694481² = 16815755691718722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91694489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6501 + ... + 15021.

It is an arithmetic number, because the mean of its divisors is an integer number (8129988).

Almost surely, 2^91694481 is an apocalyptic number.

It is an amenable number.

91694481 is a deficient number, since it is larger than the sum of its proper divisors (38385327).

91694481 is a wasteful number, since it uses less digits than its factorization.

91694481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8752.

The product of its digits is 62208, while the sum is 42.

The square root of 91694481 is about 9575.7235235777. The cubic root of 91694481 is about 450.9354712554.

The spelling of 91694481 in words is "ninety-one million, six hundred ninety-four thousand, four hundred eighty-one".