772163321 has 2 divisors, whose sum is σ = 772163322. Its totient is φ = 772163320.

The previous prime is 772163317. The next prime is 772163369. The reversal of 772163321 is 123361277.

772163321 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 can be written as a sum of positive squares in only one way, i.e., 623201296 + 148962025 = 24964^2 + 12205^2 .

It is a cyclic number.

It is not a de Polignac number, because 772163321 - 2² = 772163317 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (772163311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386081660 + 386081661.

It is an arithmetic number, because the mean of its divisors is an integer number (386081661).

Almost surely, 2^772163321 is an apocalyptic number.

It is an amenable number.

772163321 is a deficient number, since it is larger than the sum of its proper divisors (1).

772163321 is an equidigital number, since it uses as much as digits as its factorization.

772163321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 32.

The square root of 772163321 is about 27787.8268491798. The cubic root of 772163321 is about 917.4232089309.

The spelling of 772163321 in words is "seven hundred seventy-two million, one hundred sixty-three thousand, three hundred twenty-one".