913491223 has 2 divisors, whose sum is σ = 913491224. Its totient is φ = 913491222.

The previous prime is 913491211. The next prime is 913491247. The reversal of 913491223 is 322194319.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 913491223 - 2²⁵ = 879936791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (913494223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456745611 + 456745612.

It is an arithmetic number, because the mean of its divisors is an integer number (456745612).

Almost surely, 2^913491223 is an apocalyptic number.

913491223 is a deficient number, since it is larger than the sum of its proper divisors (1).

913491223 is an equidigital number, since it uses as much as digits as its factorization.

913491223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 913491223 is about 30224.0173206674. The cubic root of 913491223 is about 970.2897858809.

The spelling of 913491223 in words is "nine hundred thirteen million, four hundred ninety-one thousand, two hundred twenty-three".