913408673 has 2 divisors, whose sum is σ = 913408674. Its totient is φ = 913408672.

The previous prime is 913408667. The next prime is 913408723. The reversal of 913408673 is 376804319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 663989824 + 249418849 = 25768^2 + 15793^2 .

It is a cyclic number.

It is not a de Polignac number, because 913408673 - 2⁸ = 913408417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 913408673.

It is not a weakly prime, because it can be changed into another prime (913408663) 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, 456704336 + 456704337.

It is an arithmetic number, because the mean of its divisors is an integer number (456704337).

Almost surely, 2^913408673 is an apocalyptic number.

It is an amenable number.

913408673 is a deficient number, since it is larger than the sum of its proper divisors (1).

913408673 is an equidigital number, since it uses as much as digits as its factorization.

913408673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 913408673 is about 30222.6516540161. The cubic root of 913408673 is about 970.2605574173.

The spelling of 913408673 in words is "nine hundred thirteen million, four hundred eight thousand, six hundred seventy-three".