722811713 has 4 divisors (see below), whose sum is σ = 778412628. Its totient is φ = 667210800.

The previous prime is 722811703. The next prime is 722811751. The reversal of 722811713 is 317118227.

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 207158449 + 515653264 = 14393^2 + 22708^2 .

It is a cyclic number.

It is not a de Polignac number, because 722811713 - 2⁴ = 722811697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 722811713.

It is not an unprimeable number, because it can be changed into a prime (722811703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27800438 + ... + 27800463.

It is an arithmetic number, because the mean of its divisors is an integer number (194603157).

Almost surely, 2^722811713 is an apocalyptic number.

It is an amenable number.

722811713 is a deficient number, since it is larger than the sum of its proper divisors (55600915).

722811713 is a wasteful number, since it uses less digits than its factorization.

722811713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55600914.

The product of its digits is 4704, while the sum is 32.

The square root of 722811713 is about 26885.1578570779. The cubic root of 722811713 is about 897.4461397990.

The spelling of 722811713 in words is "seven hundred twenty-two million, eight hundred eleven thousand, seven hundred thirteen".