679960265 has 4 divisors (see below), whose sum is σ = 815952324. Its totient is φ = 543968208.

The previous prime is 679960243. The next prime is 679960279. The reversal of 679960265 is 562069976.

679960265 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 182358016 + 497602249 = 13504^2 + 22307^2 .

It is a cyclic number.

It is not a de Polignac number, because 679960265 - 2²⁰ = 678911689 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, 67996022 + ... + 67996031.

It is an arithmetic number, because the mean of its divisors is an integer number (203988081).

Almost surely, 2^679960265 is an apocalyptic number.

It is an amenable number.

679960265 is a deficient number, since it is larger than the sum of its proper divisors (135992059).

679960265 is a wasteful number, since it uses less digits than its factorization.

679960265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135992058.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 679960265 is about 26076.0477258345. The cubic root of 679960265 is about 879.3488058601.

The spelling of 679960265 in words is "six hundred seventy-nine million, nine hundred sixty thousand, two hundred sixty-five".