722674693 has 8 divisors (see below), whose sum is σ = 805102200. Its totient is φ = 644081088.

The previous prime is 722674643. The next prime is 722674721. The reversal of 722674693 is 396476227.

It can be written as a sum of positive squares in 4 ways, for example, as 16337764 + 706336929 = 4042^2 + 26577^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 722674693 - 2⁹ = 722674181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722674643) 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 7 ways as a sum of consecutive naturals, for example, 958078 + ... + 958831.

It is an arithmetic number, because the mean of its divisors is an integer number (100637775).

Almost surely, 2^722674693 is an apocalyptic number.

It is an amenable number.

722674693 is a deficient number, since it is larger than the sum of its proper divisors (82427507).

722674693 is a wasteful number, since it uses less digits than its factorization.

722674693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916951.

The product of its digits is 762048, while the sum is 46.

The square root of 722674693 is about 26882.6094901518. The cubic root of 722674693 is about 897.3894280077.

The spelling of 722674693 in words is "seven hundred twenty-two million, six hundred seventy-four thousand, six hundred ninety-three".