790776647 has 2 divisors, whose sum is σ = 790776648. Its totient is φ = 790776646.

The previous prime is 790776643. The next prime is 790776667. The reversal of 790776647 is 746677097.

It is a happy number.

790776647 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 790776647 - 2² = 790776643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (790776643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395388323 + 395388324.

It is an arithmetic number, because the mean of its divisors is an integer number (395388324).

Almost surely, 2^790776647 is an apocalyptic number.

790776647 is a deficient number, since it is larger than the sum of its proper divisors (1).

790776647 is an equidigital number, since it uses as much as digits as its factorization.

790776647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3111696, while the sum is 53.

The square root of 790776647 is about 28120.7511812896. The cubic root of 790776647 is about 924.7363834130.

The spelling of 790776647 in words is "seven hundred ninety million, seven hundred seventy-six thousand, six hundred forty-seven".