722794813 has 8 divisors (see below), whose sum is σ = 780157728. Its totient is φ = 665683824.

The previous prime is 722794801. The next prime is 722794817. The reversal of 722794813 is 318497227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-722794813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722794813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722794817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56995 + ... + 68512.

It is an arithmetic number, because the mean of its divisors is an integer number (97519716).

Almost surely, 2^722794813 is an apocalyptic number.

It is an amenable number.

722794813 is a deficient number, since it is larger than the sum of its proper divisors (57362915).

722794813 is a wasteful number, since it uses less digits than its factorization.

722794813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125963.

The product of its digits is 169344, while the sum is 43.

The square root of 722794813 is about 26884.8435554310. The cubic root of 722794813 is about 897.4391453735.

The spelling of 722794813 in words is "seven hundred twenty-two million, seven hundred ninety-four thousand, eight hundred thirteen".