679229 has 2 divisors, whose sum is σ = 679230. Its totient is φ = 679228.

The previous prime is 679223. The next prime is 679249. The reversal of 679229 is 922976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458329 + 220900 = 677^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 679229 - 2¹² = 675133 is a prime.

It is a super-2 number, since 2×679229² = 922704068882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₅₄₉₉₈ and since 679229 and 54998 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339614 + 339615.

It is an arithmetic number, because the mean of its divisors is an integer number (339615).

2⁶⁷⁹²²⁹ is an apocalyptic number.

It is an amenable number.

679229 is a deficient number, since it is larger than the sum of its proper divisors (1).

679229 is an equidigital number, since it uses as much as digits as its factorization.

679229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 679229 is about 824.1535051190. The cubic root of 679229 is about 87.9033460148.

The spelling of 679229 in words is "six hundred seventy-nine thousand, two hundred twenty-nine".