722311073 has 8 divisors (see below), whose sum is σ = 794489376. Its totient is φ = 656645220.

The previous prime is 722311043. The next prime is 722311081. The reversal of 722311073 is 370113227.

722311073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 722311073 - 2²⁶ = 655202209 is a prime.

It is a super-2 number, since 2×722311073² = 1043466572356822658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722311013) 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, 270011 + ... + 272672.

It is an arithmetic number, because the mean of its divisors is an integer number (99311172).

Almost surely, 2^722311073 is an apocalyptic number.

It is an amenable number.

722311073 is a deficient number, since it is larger than the sum of its proper divisors (72178303).

722311073 is an equidigital number, since it uses as much as digits as its factorization.

722311073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542716 (or 542694 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 722311073 is about 26875.8455308852. The cubic root of 722311073 is about 897.2388930157.

The spelling of 722311073 in words is "seven hundred twenty-two million, three hundred eleven thousand, seventy-three".