769239677 has 2 divisors, whose sum is σ = 769239678. Its totient is φ = 769239676.

The previous prime is 769239671. The next prime is 769239701. The reversal of 769239677 is 776932967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 571162201 + 198077476 = 23899^2 + 14074^2 .

It is an emirp because it is prime and its reverse (776932967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769239677 - 2²⁸ = 500804221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769239671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384619838 + 384619839.

It is an arithmetic number, because the mean of its divisors is an integer number (384619839).

Almost surely, 2^769239677 is an apocalyptic number.

It is an amenable number.

769239677 is a deficient number, since it is larger than the sum of its proper divisors (1).

769239677 is an equidigital number, since it uses as much as digits as its factorization.

769239677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6001128, while the sum is 56.

The square root of 769239677 is about 27735.1703978901. The cubic root of 769239677 is about 916.2638638559.

The spelling of 769239677 in words is "seven hundred sixty-nine million, two hundred thirty-nine thousand, six hundred seventy-seven".