724313 has 2 divisors, whose sum is σ = 724314. Its totient is φ = 724312.

The previous prime is 724309. The next prime is 724331. The reversal of 724313 is 313427.

724313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (724331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425104 + 299209 = 652^2 + 547^2 .

It is a cyclic number.

It is not a de Polignac number, because 724313 - 2² = 724309 is a prime.

It is not a weakly prime, because it can be changed into another prime (724303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362156 + 362157.

It is an arithmetic number, because the mean of its divisors is an integer number (362157).

2⁷²⁴³¹³ is an apocalyptic number.

It is an amenable number.

724313 is a deficient number, since it is larger than the sum of its proper divisors (1).

724313 is an equidigital number, since it uses as much as digits as its factorization.

724313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 20.

The square root of 724313 is about 851.0658023913. The cubic root of 724313 is about 89.8067044926.

The spelling of 724313 in words is "seven hundred twenty-four thousand, three hundred thirteen".