722670779 has 2 divisors, whose sum is σ = 722670780. Its totient is φ = 722670778.

The previous prime is 722670761. The next prime is 722670803. The reversal of 722670779 is 977076227.

722670779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722670779 - 2⁸ = 722670523 is a prime.

It is not a weakly prime, because it can be changed into another prime (722670709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361335389 + 361335390.

It is an arithmetic number, because the mean of its divisors is an integer number (361335390).

Almost surely, 2^722670779 is an apocalyptic number.

722670779 is a deficient number, since it is larger than the sum of its proper divisors (1).

722670779 is an equidigital number, since it uses as much as digits as its factorization.

722670779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518616, while the sum is 47.

The square root of 722670779 is about 26882.5366920609. The cubic root of 722670779 is about 897.3878079203.

The spelling of 722670779 in words is "seven hundred twenty-two million, six hundred seventy thousand, seven hundred seventy-nine".