913043563 has 2 divisors, whose sum is σ = 913043564. Its totient is φ = 913043562.

The previous prime is 913043557. The next prime is 913043587. The reversal of 913043563 is 365340319.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 913043563 - 2¹⁷ = 912912491 is a prime.

It is not a weakly prime, because it can be changed into another prime (913043543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456521781 + 456521782.

It is an arithmetic number, because the mean of its divisors is an integer number (456521782).

Almost surely, 2^913043563 is an apocalyptic number.

913043563 is a deficient number, since it is larger than the sum of its proper divisors (1).

913043563 is an equidigital number, since it uses as much as digits as its factorization.

913043563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 913043563 is about 30216.6107133146. The cubic root of 913043563 is about 970.1312618625.

The spelling of 913043563 in words is "nine hundred thirteen million, forty-three thousand, five hundred sixty-three".