765686338 has 8 divisors (see below), whose sum is σ = 1149212988. Its totient is φ = 382615344.

The previous prime is 765686321. The next prime is 765686387. The reversal of 765686338 is 833686567.

It can be written as a sum of positive squares in 2 ways, for example, as 657255769 + 108430569 = 25637^2 + 10413^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109681 + ... + 116452.

Almost surely, 2^765686338 is an apocalyptic number.

765686338 is a deficient number, since it is larger than the sum of its proper divisors (383526650).

765686338 is a wasteful number, since it uses less digits than its factorization.

765686338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227828.

The product of its digits is 4354560, while the sum is 52.

The square root of 765686338 is about 27671.0378916296. The cubic root of 765686338 is about 914.8508572744.

The spelling of 765686338 in words is "seven hundred sixty-five million, six hundred eighty-six thousand, three hundred thirty-eight".