722961259 has 2 divisors, whose sum is σ = 722961260. Its totient is φ = 722961258.

The previous prime is 722961251. The next prime is 722961269. The reversal of 722961259 is 952169227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722961259 - 2³ = 722961251 is a prime.

It is not a weakly prime, because it can be changed into another prime (722961251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361480629 + 361480630.

It is an arithmetic number, because the mean of its divisors is an integer number (361480630).

Almost surely, 2^722961259 is an apocalyptic number.

722961259 is a deficient number, since it is larger than the sum of its proper divisors (1).

722961259 is an equidigital number, since it uses as much as digits as its factorization.

722961259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 722961259 is about 26887.9389132005. The cubic root of 722961259 is about 897.5080278506.

The spelling of 722961259 in words is "seven hundred twenty-two million, nine hundred sixty-one thousand, two hundred fifty-nine".