679234 has 4 divisors (see below), whose sum is σ = 1018854. Its totient is φ = 339616.

The previous prime is 679229. The next prime is 679249. The reversal of 679234 is 432976.

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., 567009 + 112225 = 753^2 + 335^2 .

It is a super-2 number, since 2×679234² = 922717653512, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 679196 and 679205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169807 + ... + 169810.

2⁶⁷⁹²³⁴ is an apocalyptic number.

679234 is a deficient number, since it is larger than the sum of its proper divisors (339620).

679234 is a wasteful number, since it uses less digits than its factorization.

679234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339619.

The product of its digits is 9072, while the sum is 31.

The square root of 679234 is about 824.1565385289. The cubic root of 679234 is about 87.9035617082.

The spelling of 679234 in words is "six hundred seventy-nine thousand, two hundred thirty-four".