722811273 has 8 divisors (see below), whose sum is σ = 964027488. Its totient is φ = 481734624.

The previous prime is 722811269. The next prime is 722811289. The reversal of 722811273 is 372118227.

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

It is not a de Polignac number, because 722811273 - 2² = 722811269 is a prime.

It is a super-2 number, since 2×722811273² = 1044912272751761058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722811203) 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, 22140 + ... + 43997.

It is an arithmetic number, because the mean of its divisors is an integer number (120503436).

Almost surely, 2^722811273 is an apocalyptic number.

It is an amenable number.

722811273 is a deficient number, since it is larger than the sum of its proper divisors (241216215).

722811273 is a wasteful number, since it uses less digits than its factorization.

722811273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69783.

The product of its digits is 9408, while the sum is 33.

The square root of 722811273 is about 26885.1496741231. The cubic root of 722811273 is about 897.4459576970.

The spelling of 722811273 in words is "seven hundred twenty-two million, eight hundred eleven thousand, two hundred seventy-three".