722517479 has 2 divisors, whose sum is σ = 722517480. Its totient is φ = 722517478.

The previous prime is 722517451. The next prime is 722517491. The reversal of 722517479 is 974715227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722517479 - 2¹⁶ = 722451943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722517979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361258739 + 361258740.

It is an arithmetic number, because the mean of its divisors is an integer number (361258740).

Almost surely, 2^722517479 is an apocalyptic number.

722517479 is a deficient number, since it is larger than the sum of its proper divisors (1).

722517479 is an equidigital number, since it uses as much as digits as its factorization.

722517479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 44.

The square root of 722517479 is about 26879.6852474131. The cubic root of 722517479 is about 897.3243492041.

The spelling of 722517479 in words is "seven hundred twenty-two million, five hundred seventeen thousand, four hundred seventy-nine".