679214629 has 2 divisors, whose sum is σ = 679214630. Its totient is φ = 679214628.

The previous prime is 679214623. The next prime is 679214639. The reversal of 679214629 is 926412976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407030625 + 272184004 = 20175^2 + 16498^2 .

It is a cyclic number.

It is not a de Polignac number, because 679214629 - 2³ = 679214621 is a prime.

It is a super-2 number, since 2×679214629² = 922665024495215282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679214621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339607314 + 339607315.

It is an arithmetic number, because the mean of its divisors is an integer number (339607315).

Almost surely, 2^679214629 is an apocalyptic number.

It is an amenable number.

679214629 is a deficient number, since it is larger than the sum of its proper divisors (1).

679214629 is an equidigital number, since it uses as much as digits as its factorization.

679214629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 679214629 is about 26061.7464687231. The cubic root of 679214629 is about 879.0272606296.

The spelling of 679214629 in words is "six hundred seventy-nine million, two hundred fourteen thousand, six hundred twenty-nine".