679684266 has 24 divisors (see below), whose sum is σ = 1473341220. Its totient is φ = 226454976.

The previous prime is 679684253. The next prime is 679684267. The reversal of 679684266 is 662486976.

It can be written as a sum of positive squares in 2 ways, for example, as 672313041 + 7371225 = 25929^2 + 2715^2 .

It is not an unprimeable number, because it can be changed into a prime (679684267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36880 + ... + 52148.

Almost surely, 2^679684266 is an apocalyptic number.

679684266 is an abundant number, since it is smaller than the sum of its proper divisors (793656954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679684266 is a wasteful number, since it uses less digits than its factorization.

679684266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17750 (or 17747 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 679684266 is about 26070.7549948213. The cubic root of 679684266 is about 879.2298125166.

The spelling of 679684266 in words is "six hundred seventy-nine million, six hundred eighty-four thousand, two hundred sixty-six".