722879279 has 8 divisors (see below), whose sum is σ = 726054240. Its totient is φ = 719712000.

The previous prime is 722879273. The next prime is 722879291. The reversal of 722879279 is 972978227.

722879279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722879279 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 722879279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722879273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256679 + ... + 259479.

It is an arithmetic number, because the mean of its divisors is an integer number (90756780).

Almost surely, 2^722879279 is an apocalyptic number.

722879279 is a deficient number, since it is larger than the sum of its proper divisors (3174961).

722879279 is a wasteful number, since it uses less digits than its factorization.

722879279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841.

The product of its digits is 1778112, while the sum is 53.

The square root of 722879279 is about 26886.4143946343. The cubic root of 722879279 is about 897.4741023401.

The spelling of 722879279 in words is "seven hundred twenty-two million, eight hundred seventy-nine thousand, two hundred seventy-nine".