722617319 has 2 divisors, whose sum is σ = 722617320. Its totient is φ = 722617318.

The previous prime is 722617307. The next prime is 722617321. The reversal of 722617319 is 913716227.

722617319 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 is a cyclic number.

It is not a de Polignac number, because 722617319 - 2⁴ = 722617303 is a prime.

It is a super-2 number, since 2×722617319² = 1044351579437495522, which contains 22 as substring.

Together with 722617321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722617019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361308659 + 361308660.

It is an arithmetic number, because the mean of its divisors is an integer number (361308660).

Almost surely, 2^722617319 is an apocalyptic number.

722617319 is a deficient number, since it is larger than the sum of its proper divisors (1).

722617319 is an equidigital number, since it uses as much as digits as its factorization.

722617319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 722617319 is about 26881.5423478639. The cubic root of 722617319 is about 897.3656791093.

The spelling of 722617319 in words is "seven hundred twenty-two million, six hundred seventeen thousand, three hundred nineteen".