724357313 has 4 divisors (see below), whose sum is σ = 724509780. Its totient is φ = 724204848.

The previous prime is 724357247. The next prime is 724357357. The reversal of 724357313 is 313753427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 470369344 + 253987969 = 21688^2 + 15937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724357313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724357393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68870 + ... + 78687.

It is an arithmetic number, because the mean of its divisors is an integer number (181127445).

Almost surely, 2^724357313 is an apocalyptic number.

It is an amenable number.

724357313 is a deficient number, since it is larger than the sum of its proper divisors (152467).

724357313 is a wasteful number, since it uses less digits than its factorization.

724357313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152466.

The product of its digits is 52920, while the sum is 35.

The square root of 724357313 is about 26913.8869916629. The cubic root of 724357313 is about 898.0853589394.

The spelling of 724357313 in words is "seven hundred twenty-four million, three hundred fifty-seven thousand, three hundred thirteen".