722890523 has 2 divisors, whose sum is σ = 722890524. Its totient is φ = 722890522.

The previous prime is 722890517. The next prime is 722890579. The reversal of 722890523 is 325098227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722890523 - 2¹⁰ = 722889499 is a prime.

It is not a weakly prime, because it can be changed into another prime (722890513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361445261 + 361445262.

It is an arithmetic number, because the mean of its divisors is an integer number (361445262).

Almost surely, 2^722890523 is an apocalyptic number.

722890523 is a deficient number, since it is larger than the sum of its proper divisors (1).

722890523 is an equidigital number, since it uses as much as digits as its factorization.

722890523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 722890523 is about 26886.6234957088. The cubic root of 722890523 is about 897.4787555589.

The spelling of 722890523 in words is "seven hundred twenty-two million, eight hundred ninety thousand, five hundred twenty-three".