722472727 has 2 divisors, whose sum is σ = 722472728. Its totient is φ = 722472726.

The previous prime is 722472703. The next prime is 722472743. The reversal of 722472727 is 727274227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722472727 - 2⁷ = 722472599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722472727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722472427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361236363 + 361236364.

It is an arithmetic number, because the mean of its divisors is an integer number (361236364).

Almost surely, 2^722472727 is an apocalyptic number.

722472727 is a deficient number, since it is larger than the sum of its proper divisors (1).

722472727 is an equidigital number, since it uses as much as digits as its factorization.

722472727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153664, while the sum is 40.

The square root of 722472727 is about 26878.8527842987. The cubic root of 722472727 is about 897.3058223681.

The spelling of 722472727 in words is "seven hundred twenty-two million, four hundred seventy-two thousand, seven hundred twenty-seven".