722143589 has 2 divisors, whose sum is σ = 722143590. Its totient is φ = 722143588.

The previous prime is 722143553. The next prime is 722143601. The reversal of 722143589 is 985341227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721996900 + 146689 = 26870^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 722143589 - 2²⁰ = 721095013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722146589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361071794 + 361071795.

It is an arithmetic number, because the mean of its divisors is an integer number (361071795).

Almost surely, 2^722143589 is an apocalyptic number.

It is an amenable number.

722143589 is a deficient number, since it is larger than the sum of its proper divisors (1).

722143589 is an equidigital number, since it uses as much as digits as its factorization.

722143589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 722143589 is about 26872.7294668778. The cubic root of 722143589 is about 897.1695393440.

The spelling of 722143589 in words is "seven hundred twenty-two million, one hundred forty-three thousand, five hundred eighty-nine".