679130506 has 4 divisors (see below), whose sum is σ = 1018695762. Its totient is φ = 339565252.

The previous prime is 679130489. The next prime is 679130513. The reversal of 679130506 is 605031976.

679130506 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 only one way, i.e., 406385281 + 272745225 = 20159^2 + 16515^2 .

It is a super-2 number, since 2×679130506² = 922436488359632072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169782625 + ... + 169782628.

Almost surely, 2^679130506 is an apocalyptic number.

679130506 is a deficient number, since it is larger than the sum of its proper divisors (339565256).

679130506 is a wasteful number, since it uses less digits than its factorization.

679130506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339565255.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 679130506 is about 26060.1325015818. The cubic root of 679130506 is about 878.9909689774.

The spelling of 679130506 in words is "six hundred seventy-nine million, one hundred thirty thousand, five hundred six".