772770233 has 2 divisors, whose sum is σ = 772770234. Its totient is φ = 772770232.

The previous prime is 772770227. The next prime is 772770281. The reversal of 772770233 is 332077277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 772117369 + 652864 = 27787^2 + 808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-772770233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (772770203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386385116 + 386385117.

It is an arithmetic number, because the mean of its divisors is an integer number (386385117).

Almost surely, 2^772770233 is an apocalyptic number.

It is an amenable number.

772770233 is a deficient number, since it is larger than the sum of its proper divisors (1).

772770233 is an equidigital number, since it uses as much as digits as its factorization.

772770233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86436, while the sum is 38.

The square root of 772770233 is about 27798.7451695216. The cubic root of 772770233 is about 917.6635075503.

The spelling of 772770233 in words is "seven hundred seventy-two million, seven hundred seventy thousand, two hundred thirty-three".