724645459 has 2 divisors, whose sum is σ = 724645460. Its totient is φ = 724645458.

The previous prime is 724645403. The next prime is 724645489. The reversal of 724645459 is 954546427.

724645459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724645459 is a prime.

It is a super-2 number, since 2×724645459² = 1050222082498641362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (724645489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362322729 + 362322730.

It is an arithmetic number, because the mean of its divisors is an integer number (362322730).

Almost surely, 2^724645459 is an apocalyptic number.

724645459 is a deficient number, since it is larger than the sum of its proper divisors (1).

724645459 is an equidigital number, since it uses as much as digits as its factorization.

724645459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 46.

The square root of 724645459 is about 26919.2395694975. The cubic root of 724645459 is about 898.2044278910.

The spelling of 724645459 in words is "seven hundred twenty-four million, six hundred forty-five thousand, four hundred fifty-nine".