913913563 has 2 divisors, whose sum is σ = 913913564. Its totient is φ = 913913562.

The previous prime is 913913551. The next prime is 913913597. The reversal of 913913563 is 365319319.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 913913563 - 2⁵ = 913913531 is a prime.

It is not a weakly prime, because it can be changed into another prime (913910563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456956781 + 456956782.

It is an arithmetic number, because the mean of its divisors is an integer number (456956782).

Almost surely, 2^913913563 is an apocalyptic number.

913913563 is a deficient number, since it is larger than the sum of its proper divisors (1).

913913563 is an equidigital number, since it uses as much as digits as its factorization.

913913563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65610, while the sum is 40.

The square root of 913913563 is about 30231.0033409412. The cubic root of 913913563 is about 970.4392961845.

The spelling of 913913563 in words is "nine hundred thirteen million, nine hundred thirteen thousand, five hundred sixty-three".