679645265 has 16 divisors (see below), whose sum is σ = 878931648. Its totient is φ = 501537216.

The previous prime is 679645259. The next prime is 679645277. The reversal of 679645265 is 562546976.

It is a cyclic number.

It is not a de Polignac number, because 679645265 - 2⁶ = 679645201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121214 + ... + 126696.

It is an arithmetic number, because the mean of its divisors is an integer number (54933228).

Almost surely, 2^679645265 is an apocalyptic number.

679645265 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

679645265 is a deficient number, since it is larger than the sum of its proper divisors (199286383).

679645265 is a wasteful number, since it uses less digits than its factorization.

679645265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7408.

The product of its digits is 2721600, while the sum is 50.

The square root of 679645265 is about 26070.0070003826. The cubic root of 679645265 is about 879.2129951503.

The spelling of 679645265 in words is "six hundred seventy-nine million, six hundred forty-five thousand, two hundred sixty-five".