724313213 has 12 divisors (see below), whose sum is σ = 785098548. Its totient is φ = 667929600.

The previous prime is 724313179. The next prime is 724313267. The reversal of 724313213 is 312313427.

724313213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 83868964 + 640444249 = 9158^2 + 25307^2 .

It is not a de Polignac number, because 724313213 - 2²² = 720118909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724313273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269231 + ... + 271907.

It is an arithmetic number, because the mean of its divisors is an integer number (65424879).

Almost surely, 2^724313213 is an apocalyptic number.

It is an amenable number.

724313213 is a deficient number, since it is larger than the sum of its proper divisors (60785335).

724313213 is a wasteful number, since it uses less digits than its factorization.

724313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304 (or 4291 counting only the distinct ones).

The product of its digits is 3024, while the sum is 26.

The square root of 724313213 is about 26913.0676995396. The cubic root of 724313213 is about 898.0671329583.

The spelling of 724313213 in words is "seven hundred twenty-four million, three hundred thirteen thousand, two hundred thirteen".