722916563 has 2 divisors, whose sum is σ = 722916564. Its totient is φ = 722916562.

The previous prime is 722916547. The next prime is 722916581. The reversal of 722916563 is 365619227.

It is a weak prime.

It is an emirp because it is prime and its reverse (365619227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722916563 - 2⁴ = 722916547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722916563.

It is not a weakly prime, because it can be changed into another prime (722916163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361458281 + 361458282.

It is an arithmetic number, because the mean of its divisors is an integer number (361458282).

Almost surely, 2^722916563 is an apocalyptic number.

722916563 is a deficient number, since it is larger than the sum of its proper divisors (1).

722916563 is an equidigital number, since it uses as much as digits as its factorization.

722916563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 722916563 is about 26887.1077470225. The cubic root of 722916563 is about 897.4895317717.

The spelling of 722916563 in words is "seven hundred twenty-two million, nine hundred sixteen thousand, five hundred sixty-three".