772271317 has 2 divisors, whose sum is σ = 772271318. Its totient is φ = 772271316.

The previous prime is 772271303. The next prime is 772271387. The reversal of 772271317 is 713172277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 680896836 + 91374481 = 26094^2 + 9559^2 .

It is a cyclic number.

It is not a de Polignac number, because 772271317 - 2²⁷ = 638053589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (772271387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386135658 + 386135659.

It is an arithmetic number, because the mean of its divisors is an integer number (386135659).

Almost surely, 2^772271317 is an apocalyptic number.

It is an amenable number.

772271317 is a deficient number, since it is larger than the sum of its proper divisors (1).

772271317 is an equidigital number, since it uses as much as digits as its factorization.

772271317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28812, while the sum is 37.

The square root of 772271317 is about 27789.7700062451. The cubic root of 772271317 is about 917.4659776974.

The spelling of 772271317 in words is "seven hundred seventy-two million, two hundred seventy-one thousand, three hundred seventeen".