723372613 has 2 divisors, whose sum is σ = 723372614. Its totient is φ = 723372612.

The previous prime is 723372583. The next prime is 723372619. The reversal of 723372613 is 316273327.

723372613 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 can be written as a sum of positive squares in only one way, i.e., 710862244 + 12510369 = 26662^2 + 3537^2 .

It is a cyclic number.

It is not a de Polignac number, because 723372613 - 2²¹ = 721275461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723372619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361686306 + 361686307.

It is an arithmetic number, because the mean of its divisors is an integer number (361686307).

Almost surely, 2^723372613 is an apocalyptic number.

It is an amenable number.

723372613 is a deficient number, since it is larger than the sum of its proper divisors (1).

723372613 is an equidigital number, since it uses as much as digits as its factorization.

723372613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 34.

The square root of 723372613 is about 26895.5872402891. The cubic root of 723372613 is about 897.6782183981.

The spelling of 723372613 in words is "seven hundred twenty-three million, three hundred seventy-two thousand, six hundred thirteen".