676786865 has 4 divisors (see below), whose sum is σ = 812144244. Its totient is φ = 541429488.

The previous prime is 676786807. The next prime is 676786871. The reversal of 676786865 is 568687676.

676786865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 317267344 + 359519521 = 17812^2 + 18961^2 .

It is a cyclic number.

It is not a de Polignac number, because 676786865 - 2¹⁰ = 676785841 is a prime.

It is a Duffinian number.

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, 67678682 + ... + 67678691.

It is an arithmetic number, because the mean of its divisors is an integer number (203036061).

Almost surely, 2^676786865 is an apocalyptic number.

It is an amenable number.

676786865 is a deficient number, since it is larger than the sum of its proper divisors (135357379).

676786865 is a wasteful number, since it uses less digits than its factorization.

676786865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135357378.

The product of its digits is 20321280, while the sum is 59.

The square root of 676786865 is about 26015.1276183685. The cubic root of 676786865 is about 877.9786875862.

The spelling of 676786865 in words is "six hundred seventy-six million, seven hundred eighty-six thousand, eight hundred sixty-five".