765580738 has 8 divisors (see below), whose sum is σ = 1236707388. Its totient is φ = 353344944.

The previous prime is 765580733. The next prime is 765580787. The reversal of 765580738 is 837085567.

765580738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 755865049 + 9715689 = 27493^2 + 3117^2 .

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

It is a super-2 number, since 2×765580738² = 1172227732793249288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 765580691 and 765580700.

It is not an unprimeable number, because it can be changed into a prime (765580733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14722681 + ... + 14722732.

Almost surely, 2^765580738 is an apocalyptic number.

765580738 is a deficient number, since it is larger than the sum of its proper divisors (471126650).

765580738 is a wasteful number, since it uses less digits than its factorization.

765580738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29445428.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 765580738 is about 27669.1296935773. The cubic root of 765580738 is about 914.8087979753.

The spelling of 765580738 in words is "seven hundred sixty-five million, five hundred eighty thousand, seven hundred thirty-eight".