679829 has 2 divisors, whose sum is σ = 679830. Its totient is φ = 679828.

The previous prime is 679823. The next prime is 679837. The reversal of 679829 is 928976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 677329 + 2500 = 823^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 679829 - 2¹⁶ = 614293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339914 + 339915.

It is an arithmetic number, because the mean of its divisors is an integer number (339915).

2⁶⁷⁹⁸²⁹ is an apocalyptic number.

It is an amenable number.

679829 is a deficient number, since it is larger than the sum of its proper divisors (1).

679829 is an equidigital number, since it uses as much as digits as its factorization.

679829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 679829 is about 824.5174346246. The cubic root of 679829 is about 87.9292216696.

The spelling of 679829 in words is "six hundred seventy-nine thousand, eight hundred twenty-nine".