679368269 has 2 divisors, whose sum is σ = 679368270. Its totient is φ = 679368268.

The previous prime is 679368253. The next prime is 679368281. The reversal of 679368269 is 962863976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509404900 + 169963369 = 22570^2 + 13037^2 .

It is a cyclic number.

It is not a de Polignac number, because 679368269 - 2⁴ = 679368253 is a prime.

It is a super-2 number, since 2×679368269² = 923082489848112722, 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 (679361269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339684134 + 339684135.

It is an arithmetic number, because the mean of its divisors is an integer number (339684135).

Almost surely, 2^679368269 is an apocalyptic number.

It is an amenable number.

679368269 is a deficient number, since it is larger than the sum of its proper divisors (1).

679368269 is an equidigital number, since it uses as much as digits as its factorization.

679368269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 56.

The square root of 679368269 is about 26064.6939172514. The cubic root of 679368269 is about 879.0935350003.

The spelling of 679368269 in words is "six hundred seventy-nine million, three hundred sixty-eight thousand, two hundred sixty-nine".