722523419 has 2 divisors, whose sum is σ = 722523420. Its totient is φ = 722523418.

The previous prime is 722523407. The next prime is 722523437. The reversal of 722523419 is 914325227.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722523419 - 2⁸ = 722523163 is a prime.

It is a super-2 number, since 2×722523419² = 1044080182006899122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (722526419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361261709 + 361261710.

It is an arithmetic number, because the mean of its divisors is an integer number (361261710).

Almost surely, 2^722523419 is an apocalyptic number.

722523419 is a deficient number, since it is larger than the sum of its proper divisors (1).

722523419 is an equidigital number, since it uses as much as digits as its factorization.

722523419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 722523419 is about 26879.7957395513. The cubic root of 722523419 is about 897.3268082412.

The spelling of 722523419 in words is "seven hundred twenty-two million, five hundred twenty-three thousand, four hundred nineteen".