722459 has 2 divisors, whose sum is σ = 722460. Its totient is φ = 722458.

The previous prime is 722431. The next prime is 722467. The reversal of 722459 is 954227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722459 - 2¹⁶ = 656923 is a prime.

It is a d-powerful number, because it can be written as 7² + 2¹⁶ + 4⁶ + 2¹⁸ + 5⁸ + 9 .

It is not a weakly prime, because it can be changed into another prime (722479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361229 + 361230.

It is an arithmetic number, because the mean of its divisors is an integer number (361230).

2⁷²²⁴⁵⁹ is an apocalyptic number.

722459 is a deficient number, since it is larger than the sum of its proper divisors (1).

722459 is an equidigital number, since it uses as much as digits as its factorization.

722459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 722459 is about 849.9758820108. The cubic root of 722459 is about 89.7300139388.

The spelling of 722459 in words is "seven hundred twenty-two thousand, four hundred fifty-nine".