769042897 has 6 divisors (see below), whose sum is σ = 894600978. Its totient is φ = 659179584.

The previous prime is 769042877. The next prime is 769042903. The reversal of 769042897 is 798240967.

It can be written as a sum of positive squares in only one way, i.e., 660695616 + 108347281 = 25704^2 + 10409^2 .

It is a de Polignac number, because none of the positive numbers 2^k-769042897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (769042867) 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 5 ways as a sum of consecutive naturals, for example, 7847328 + ... + 7847425.

It is an arithmetic number, because the mean of its divisors is an integer number (149100163).

Almost surely, 2^769042897 is an apocalyptic number.

It is an amenable number.

769042897 is a deficient number, since it is larger than the sum of its proper divisors (125558081).

769042897 is a wasteful number, since it uses less digits than its factorization.

769042897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15694767 (or 15694760 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 769042897 is about 27731.6226896300. The cubic root of 769042897 is about 916.1857270562.

The spelling of 769042897 in words is "seven hundred sixty-nine million, forty-two thousand, eight hundred ninety-seven".