722257273 has 4 divisors (see below), whose sum is σ = 722325888. Its totient is φ = 722188660.

The previous prime is 722257259. The next prime is 722257309. The reversal of 722257273 is 372752227.

722257273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 722257273 - 2²⁹ = 185386361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722257213) 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, 14833 + ... + 40798.

It is an arithmetic number, because the mean of its divisors is an integer number (180581472).

Almost surely, 2^722257273 is an apocalyptic number.

It is an amenable number.

722257273 is a deficient number, since it is larger than the sum of its proper divisors (68615).

722257273 is a wasteful number, since it uses less digits than its factorization.

722257273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68614.

The product of its digits is 82320, while the sum is 37.

The square root of 722257273 is about 26874.8446135043. The cubic root of 722257273 is about 897.2166160712.

The spelling of 722257273 in words is "seven hundred twenty-two million, two hundred fifty-seven thousand, two hundred seventy-three".