91713379 has 2 divisors, whose sum is σ = 91713380. Its totient is φ = 91713378.

The previous prime is 91713337. The next prime is 91713383. The reversal of 91713379 is 97331719.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91713379 - 2¹¹ = 91711331 is a prime.

It is a super-2 number, since 2×91713379² = 16822687775195282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91713319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45856689 + 45856690.

It is an arithmetic number, because the mean of its divisors is an integer number (45856690).

Almost surely, 2^91713379 is an apocalyptic number.

91713379 is a deficient number, since it is larger than the sum of its proper divisors (1).

91713379 is an equidigital number, since it uses as much as digits as its factorization.

91713379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35721, while the sum is 40.

The square root of 91713379 is about 9576.7102389077. The cubic root of 91713379 is about 450.9664480131.

The spelling of 91713379 in words is "ninety-one million, seven hundred thirteen thousand, three hundred seventy-nine".