722749971 has 32 divisors (see below), whose sum is σ = 1012514560. Its totient is φ = 458130816.

The previous prime is 722749961. The next prime is 722750023. The reversal of 722749971 is 179947227.

It is not a de Polignac number, because 722749971 - 2¹⁰ = 722748947 is a prime.

It is a super-3 number, since 3×722749971³ (a number of 28 digits) contains 333 as substring.

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 722749971.

It is not an unprimeable number, because it can be changed into a prime (722749931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1167300 + ... + 1167918.

It is an arithmetic number, because the mean of its divisors is an integer number (31641080).

Almost surely, 2^722749971 is an apocalyptic number.

722749971 is a deficient number, since it is larger than the sum of its proper divisors (289764589).

722749971 is a wasteful number, since it uses less digits than its factorization.

722749971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883.

The product of its digits is 444528, while the sum is 48.

The square root of 722749971 is about 26884.0095781861. The cubic root of 722749971 is about 897.4205860269.

The spelling of 722749971 in words is "seven hundred twenty-two million, seven hundred forty-nine thousand, nine hundred seventy-one".