769290866 has 16 divisors (see below), whose sum is σ = 1178921304. Its totient is φ = 376356864.

The previous prime is 769290857. The next prime is 769290881. The reversal of 769290866 is 668092967.

It can be written as a sum of positive squares in 4 ways, for example, as 763361641 + 5929225 = 27629^2 + 2435^2 .

It is a super-2 number, since 2×769290866² = 1183616873022059912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29810 + ... + 49266.

Almost surely, 2^769290866 is an apocalyptic number.

769290866 is a deficient number, since it is larger than the sum of its proper divisors (409630438).

769290866 is a wasteful number, since it uses less digits than its factorization.

769290866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19885.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 769290866 is about 27736.0932000165. The cubic root of 769290866 is about 916.2841876432.

The spelling of 769290866 in words is "seven hundred sixty-nine million, two hundred ninety thousand, eight hundred sixty-six".