772814369 has 2 divisors, whose sum is σ = 772814370. Its totient is φ = 772814368.

The previous prime is 772814353. The next prime is 772814389. The reversal of 772814369 is 963418277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735114769 + 37699600 = 27113^2 + 6140^2 .

It is an emirp because it is prime and its reverse (963418277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 772814369 - 2⁴ = 772814353 is a prime.

It is a super-2 number, since 2×772814369² = 1194484097865736322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (772814309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386407184 + 386407185.

It is an arithmetic number, because the mean of its divisors is an integer number (386407185).

Almost surely, 2^772814369 is an apocalyptic number.

It is an amenable number.

772814369 is a deficient number, since it is larger than the sum of its proper divisors (1).

772814369 is an equidigital number, since it uses as much as digits as its factorization.

772814369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 772814369 is about 27799.5390069692. The cubic root of 772814369 is about 917.6809776959.

The spelling of 772814369 in words is "seven hundred seventy-two million, eight hundred fourteen thousand, three hundred sixty-nine".