722229727 has 2 divisors, whose sum is σ = 722229728. Its totient is φ = 722229726.

The previous prime is 722229713. The next prime is 722229769. The reversal of 722229727 is 727922227.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722229727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722229727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722229707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361114863 + 361114864.

It is an arithmetic number, because the mean of its divisors is an integer number (361114864).

Almost surely, 2^722229727 is an apocalyptic number.

722229727 is a deficient number, since it is larger than the sum of its proper divisors (1).

722229727 is an equidigital number, since it uses as much as digits as its factorization.

722229727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 40.

The square root of 722229727 is about 26874.3321219337. The cubic root of 722229727 is about 897.2052096818.

The spelling of 722229727 in words is "seven hundred twenty-two million, two hundred twenty-nine thousand, seven hundred twenty-seven".