724647089 has 2 divisors, whose sum is σ = 724647090. Its totient is φ = 724647088.

The previous prime is 724647071. The next prime is 724647193. The reversal of 724647089 is 980746427.

724647089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 686020864 + 38626225 = 26192^2 + 6215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724647089 is a prime.

It is a super-2 number, since 2×724647089² = 1050226807192347842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (724647059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362323544 + 362323545.

It is an arithmetic number, because the mean of its divisors is an integer number (362323545).

Almost surely, 2^724647089 is an apocalyptic number.

It is an amenable number.

724647089 is a deficient number, since it is larger than the sum of its proper divisors (1).

724647089 is an equidigital number, since it uses as much as digits as its factorization.

724647089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 724647089 is about 26919.2698452243. The cubic root of 724647089 is about 898.2051013570.

The spelling of 724647089 in words is "seven hundred twenty-four million, six hundred forty-seven thousand, eighty-nine".