722263393 has 2 divisors, whose sum is σ = 722263394. Its totient is φ = 722263392.

The previous prime is 722263331. The next prime is 722263439. The reversal of 722263393 is 393362227.

722263393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698174929 + 24088464 = 26423^2 + 4908^2 .

It is an emirp because it is prime and its reverse (393362227) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722263393 is a prime.

It is not a weakly prime, because it can be changed into another prime (722263313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361131696 + 361131697.

It is an arithmetic number, because the mean of its divisors is an integer number (361131697).

Almost surely, 2^722263393 is an apocalyptic number.

It is an amenable number.

722263393 is a deficient number, since it is larger than the sum of its proper divisors (1).

722263393 is an equidigital number, since it uses as much as digits as its factorization.

722263393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 37.

The square root of 722263393 is about 26874.9584743865. The cubic root of 722263393 is about 897.2191502329.

The spelling of 722263393 in words is "seven hundred twenty-two million, two hundred sixty-three thousand, three hundred ninety-three".