722754729 has 12 divisors (see below), whose sum is σ = 1050015876. Its totient is φ = 479050272.

The previous prime is 722754727. The next prime is 722754743. The reversal of 722754729 is 927457227.

It can be written as a sum of positive squares in 2 ways, for example, as 593409600 + 129345129 = 24360^2 + 11373^2 .

It is not a de Polignac number, because 722754729 - 2¹ = 722754727 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (722754727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230542 + ... + 233655.

It is an arithmetic number, because the mean of its divisors is an integer number (87501323).

Almost surely, 2^722754729 is an apocalyptic number.

It is an amenable number.

722754729 is a deficient number, since it is larger than the sum of its proper divisors (327261147).

722754729 is a wasteful number, since it uses less digits than its factorization.

722754729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464376 (or 464373 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 722754729 is about 26884.0980693048. The cubic root of 722754729 is about 897.4225553192.

The spelling of 722754729 in words is "seven hundred twenty-two million, seven hundred fifty-four thousand, seven hundred twenty-nine".