769456769 has 4 divisors (see below), whose sum is σ = 770090244. Its totient is φ = 768823296.

The previous prime is 769456763. The next prime is 769456781. The reversal of 769456769 is 967654967.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 267159025 + 502297744 = 16345^2 + 22412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-769456769 is a prime.

It is a super-2 number, since 2×769456769² = 1184127438719838722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (769456763) 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 in 3 ways as a sum of consecutive naturals, for example, 314912 + ... + 317345.

It is an arithmetic number, because the mean of its divisors is an integer number (192522561).

Almost surely, 2^769456769 is an apocalyptic number.

It is an amenable number.

769456769 is a deficient number, since it is larger than the sum of its proper divisors (633475).

769456769 is a wasteful number, since it uses less digits than its factorization.

769456769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633474.

The product of its digits is 17146080, while the sum is 59.

The square root of 769456769 is about 27739.0837808317. The cubic root of 769456769 is about 916.3500506242.

The spelling of 769456769 in words is "seven hundred sixty-nine million, four hundred fifty-six thousand, seven hundred sixty-nine".