722274677 has 2 divisors, whose sum is σ = 722274678. Its totient is φ = 722274676.

The previous prime is 722274671. The next prime is 722274703. The reversal of 722274677 is 776472227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 713477521 + 8797156 = 26711^2 + 2966^2 .

It is a cyclic number.

It is not a de Polignac number, because 722274677 - 2⁴ = 722274661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722274671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361137338 + 361137339.

It is an arithmetic number, because the mean of its divisors is an integer number (361137339).

Almost surely, 2^722274677 is an apocalyptic number.

It is an amenable number.

722274677 is a deficient number, since it is larger than the sum of its proper divisors (1).

722274677 is an equidigital number, since it uses as much as digits as its factorization.

722274677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460992, while the sum is 44.

The square root of 722274677 is about 26875.1684087747. The cubic root of 722274677 is about 897.2238226596.

The spelling of 722274677 in words is "seven hundred twenty-two million, two hundred seventy-four thousand, six hundred seventy-seven".