91646033 has 2 divisors, whose sum is σ = 91646034. Its totient is φ = 91646032.

The previous prime is 91646011. The next prime is 91646039. The reversal of 91646033 is 33064619.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65092624 + 26553409 = 8068^2 + 5153^2 .

It is a cyclic number.

It is not a de Polignac number, because 91646033 - 2²⁶ = 24537169 is a prime.

It is not a weakly prime, because it can be changed into another prime (91646039) 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 as a sum of consecutive naturals, namely, 45823016 + 45823017.

It is an arithmetic number, because the mean of its divisors is an integer number (45823017).

Almost surely, 2^91646033 is an apocalyptic number.

It is an amenable number.

91646033 is a deficient number, since it is larger than the sum of its proper divisors (1).

91646033 is an equidigital number, since it uses as much as digits as its factorization.

91646033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 91646033 is about 9573.1934588203. The cubic root of 91646033 is about 450.8560380103.

The spelling of 91646033 in words is "ninety-one million, six hundred forty-six thousand, thirty-three".