679039 has 2 divisors, whose sum is σ = 679040. Its totient is φ = 679038.

The previous prime is 679037. The next prime is 679051. The reversal of 679039 is 930976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679039 - 2¹ = 679037 is a prime.

It is a super-2 number, since 2×679039² = 922187927042, which contains 22 as substring.

Together with 679037, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 678995 and 679013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339519 + 339520.

It is an arithmetic number, because the mean of its divisors is an integer number (339520).

2⁶⁷⁹⁰³⁹ is an apocalyptic number.

679039 is a deficient number, since it is larger than the sum of its proper divisors (1).

679039 is an equidigital number, since it uses as much as digits as its factorization.

679039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 679039 is about 824.0382272686. The cubic root of 679039 is about 87.8951488809.

The spelling of 679039 in words is "six hundred seventy-nine thousand, thirty-nine".