91104331 has 2 divisors, whose sum is σ = 91104332. Its totient is φ = 91104330.

The previous prime is 91104317. The next prime is 91104347. The reversal of 91104331 is 13340119.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91104331 - 2¹³ = 91096139 is a prime.

It is a super-2 number, since 2×91104331² = 16599998253915122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91104371) 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, 45552165 + 45552166.

It is an arithmetic number, because the mean of its divisors is an integer number (45552166).

Almost surely, 2^91104331 is an apocalyptic number.

91104331 is a deficient number, since it is larger than the sum of its proper divisors (1).

91104331 is an equidigital number, since it uses as much as digits as its factorization.

91104331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 91104331 is about 9544.8588779510. The cubic root of 91104331 is about 449.9659743820.

The spelling of 91104331 in words is "ninety-one million, one hundred four thousand, three hundred thirty-one".