722739753 has 20 divisors (see below), whose sum is σ = 1081709508. Its totient is φ = 480906720.

The previous prime is 722739733. The next prime is 722739757. The reversal of 722739753 is 357937227.

It can be written as a sum of positive squares in 2 ways, for example, as 122146704 + 600593049 = 11052^2 + 24507^2 .

It is not a de Polignac number, because 722739753 - 2¹⁴ = 722723369 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 722739699 and 722739708.

It is not an unprimeable number, because it can be changed into a prime (722739757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35575 + ... + 52067.

Almost surely, 2^722739753 is an apocalyptic number.

It is an amenable number.

722739753 is a deficient number, since it is larger than the sum of its proper divisors (358969755).

722739753 is a wasteful number, since it uses less digits than its factorization.

722739753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17046 (or 17037 counting only the distinct ones).

The product of its digits is 555660, while the sum is 45.

The square root of 722739753 is about 26883.8195388974. The cubic root of 722739753 is about 897.4163568619.

The spelling of 722739753 in words is "seven hundred twenty-two million, seven hundred thirty-nine thousand, seven hundred fifty-three".