91366339 has 2 divisors, whose sum is σ = 91366340. Its totient is φ = 91366338.

The previous prime is 91366333. The next prime is 91366351. The reversal of 91366339 is 93366319.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91366339 is a prime.

It is not a weakly prime, because it can be changed into another prime (91366333) 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, 45683169 + 45683170.

It is an arithmetic number, because the mean of its divisors is an integer number (45683170).

Almost surely, 2^91366339 is an apocalyptic number.

91366339 is a deficient number, since it is larger than the sum of its proper divisors (1).

91366339 is an equidigital number, since it uses as much as digits as its factorization.

91366339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 40.

The square root of 91366339 is about 9558.5741091441. The cubic root of 91366339 is about 450.3969156473.

The spelling of 91366339 in words is "ninety-one million, three hundred sixty-six thousand, three hundred thirty-nine".