91164841 has 4 divisors (see below), whose sum is σ = 91198800. Its totient is φ = 91130884.

The previous prime is 91164817. The next prime is 91164851. The reversal of 91164841 is 14846119.

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.

It is a cyclic number.

It is not a de Polignac number, because 91164841 - 2⁷ = 91164713 is a prime.

It is a super-2 number, since 2×91164841² = 16622056469110562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91164797 and 91164806.

It is not an unprimeable number, because it can be changed into a prime (91164851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12571 + ... + 18448.

It is an arithmetic number, because the mean of its divisors is an integer number (22799700).

Almost surely, 2^91164841 is an apocalyptic number.

It is an amenable number.

91164841 is a deficient number, since it is larger than the sum of its proper divisors (33959).

91164841 is a wasteful number, since it uses less digits than its factorization.

91164841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33958.

The product of its digits is 6912, while the sum is 34.

The square root of 91164841 is about 9548.0281210311. The cubic root of 91164841 is about 450.0655723376.

The spelling of 91164841 in words is "ninety-one million, one hundred sixty-four thousand, eight hundred forty-one".