91696841 has 4 divisors (see below), whose sum is σ = 94175172. Its totient is φ = 89218512.

The previous prime is 91696819. The next prime is 91696849. The reversal of 91696841 is 14869619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14869619 = 1693 ⋅8783.

It can be written as a sum of positive squares in 2 ways, for example, as 52258441 + 39438400 = 7229^2 + 6280^2 .

It is a cyclic number.

It is not a de Polignac number, because 91696841 - 2¹⁸ = 91434697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91696792 and 91696801.

It is not an unprimeable number, because it can be changed into a prime (91696849) 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, 1239110 + ... + 1239183.

It is an arithmetic number, because the mean of its divisors is an integer number (23543793).

Almost surely, 2^91696841 is an apocalyptic number.

It is an amenable number.

91696841 is a deficient number, since it is larger than the sum of its proper divisors (2478331).

91696841 is a wasteful number, since it uses less digits than its factorization.

91696841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478330.

The product of its digits is 93312, while the sum is 44.

The square root of 91696841 is about 9575.8467510712. The cubic root of 91696841 is about 450.9393398945.

The spelling of 91696841 in words is "ninety-one million, six hundred ninety-six thousand, eight hundred forty-one".