722563 has 2 divisors, whose sum is σ = 722564. Its totient is φ = 722562.

The previous prime is 722539. The next prime is 722581. The reversal of 722563 is 365227.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722563 is a prime.

It is not a weakly prime, because it can be changed into another prime (722063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361281 + 361282.

It is an arithmetic number, because the mean of its divisors is an integer number (361282).

2⁷²²⁵⁶³ is an apocalyptic number.

722563 is a deficient number, since it is larger than the sum of its proper divisors (1).

722563 is an equidigital number, since it uses as much as digits as its factorization.

722563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 25.

The square root of 722563 is about 850.0370580157. The cubic root of 722563 is about 89.7343193613.

The spelling of 722563 in words is "seven hundred twenty-two thousand, five hundred sixty-three".