722249117 has 2 divisors, whose sum is σ = 722249118. Its totient is φ = 722249116.

The previous prime is 722249057. The next prime is 722249123. The reversal of 722249117 is 711942227.

722249117 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., 692426596 + 29822521 = 26314^2 + 5461^2 .

It is a cyclic number.

It is not a de Polignac number, because 722249117 - 2¹² = 722245021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722249137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361124558 + 361124559.

It is an arithmetic number, because the mean of its divisors is an integer number (361124559).

Almost surely, 2^722249117 is an apocalyptic number.

It is an amenable number.

722249117 is a deficient number, since it is larger than the sum of its proper divisors (1).

722249117 is an equidigital number, since it uses as much as digits as its factorization.

722249117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 35.

The square root of 722249117 is about 26874.6928726637. The cubic root of 722249117 is about 897.2132388230.

The spelling of 722249117 in words is "seven hundred twenty-two million, two hundred forty-nine thousand, one hundred seventeen".