91268329 has 2 divisors, whose sum is σ = 91268330. Its totient is φ = 91268328.

The previous prime is 91268297. The next prime is 91268351. The reversal of 91268329 is 92386219.

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., 61544025 + 29724304 = 7845^2 + 5452^2 .

It is a cyclic number.

It is not a de Polignac number, because 91268329 - 2⁵ = 91268297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91268291 and 91268300.

It is not a weakly prime, because it can be changed into another prime (91268389) 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, 45634164 + 45634165.

It is an arithmetic number, because the mean of its divisors is an integer number (45634165).

Almost surely, 2^91268329 is an apocalyptic number.

It is an amenable number.

91268329 is a deficient number, since it is larger than the sum of its proper divisors (1).

91268329 is an equidigital number, since it uses as much as digits as its factorization.

91268329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 91268329 is about 9553.4459228071. The cubic root of 91268329 is about 450.2358089202.

The spelling of 91268329 in words is "ninety-one million, two hundred sixty-eight thousand, three hundred twenty-nine".