722477417 has 2 divisors, whose sum is σ = 722477418. Its totient is φ = 722477416.

The previous prime is 722477411. The next prime is 722477447. The reversal of 722477417 is 714774227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465869056 + 256608361 = 21584^2 + 16019^2 .

It is an emirp because it is prime and its reverse (714774227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722477417 - 2²⁴ = 705700201 is a prime.

It is not a weakly prime, because it can be changed into another prime (722477411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361238708 + 361238709.

It is an arithmetic number, because the mean of its divisors is an integer number (361238709).

Almost surely, 2^722477417 is an apocalyptic number.

It is an amenable number.

722477417 is a deficient number, since it is larger than the sum of its proper divisors (1).

722477417 is an equidigital number, since it uses as much as digits as its factorization.

722477417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153664, while the sum is 41.

The square root of 722477417 is about 26878.9400274639. The cubic root of 722477417 is about 897.3077640124.

The spelling of 722477417 in words is "seven hundred twenty-two million, four hundred seventy-seven thousand, four hundred seventeen".