722710213 has 2 divisors, whose sum is σ = 722710214. Its totient is φ = 722710212.

The previous prime is 722710199. The next prime is 722710217. The reversal of 722710213 is 312017227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 566535204 + 156175009 = 23802^2 + 12497^2 .

It is a cyclic number.

It is not a de Polignac number, because 722710213 - 2²⁹ = 185839301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722710217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361355106 + 361355107.

It is an arithmetic number, because the mean of its divisors is an integer number (361355107).

Almost surely, 2^722710213 is an apocalyptic number.

It is an amenable number.

722710213 is a deficient number, since it is larger than the sum of its proper divisors (1).

722710213 is an equidigital number, since it uses as much as digits as its factorization.

722710213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 722710213 is about 26883.2701321844. The cubic root of 722710213 is about 897.4041302200.

The spelling of 722710213 in words is "seven hundred twenty-two million, seven hundred ten thousand, two hundred thirteen".