91736479 has 2 divisors, whose sum is σ = 91736480. Its totient is φ = 91736478.

The previous prime is 91736453. The next prime is 91736521. The reversal of 91736479 is 97463719.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91736479 - 2⁹ = 91735967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91736429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45868239 + 45868240.

It is an arithmetic number, because the mean of its divisors is an integer number (45868240).

Almost surely, 2^91736479 is an apocalyptic number.

91736479 is a deficient number, since it is larger than the sum of its proper divisors (1).

91736479 is an equidigital number, since it uses as much as digits as its factorization.

91736479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 46.

The square root of 91736479 is about 9577.9162138745. The cubic root of 91736479 is about 451.0043067224.

The spelling of 91736479 in words is "ninety-one million, seven hundred thirty-six thousand, four hundred seventy-nine".