722220763 has 8 divisors (see below), whose sum is σ = 790076160. Its totient is φ = 654731880.

The previous prime is 722220757. The next prime is 722220773. The reversal of 722220763 is 367022227.

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

It is not a de Polignac number, because 722220763 - 2¹⁷ = 722089691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722220713) 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, 87495 + ... + 95392.

It is an arithmetic number, because the mean of its divisors is an integer number (98759520).

Almost surely, 2^722220763 is an apocalyptic number.

722220763 is a deficient number, since it is larger than the sum of its proper divisors (67855397).

722220763 is a wasteful number, since it uses less digits than its factorization.

722220763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183257.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 722220763 is about 26874.1653451786. The cubic root of 722220763 is about 897.2014977600.

The spelling of 722220763 in words is "seven hundred twenty-two million, two hundred twenty thousand, seven hundred sixty-three".