868339169 has 2 divisors, whose sum is σ = 868339170. Its totient is φ = 868339168.

The previous prime is 868339163. The next prime is 868339177. The reversal of 868339169 is 961933868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 686440000 + 181899169 = 26200^2 + 13487^2 .

It is a cyclic number.

It is not a de Polignac number, because 868339169 - 2²⁸ = 599903713 is a prime.

It is a super-2 number, since 2×868339169² = 1508025824839221122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 868339169.

It is not a weakly prime, because it can be changed into another prime (868339163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434169584 + 434169585.

It is an arithmetic number, because the mean of its divisors is an integer number (434169585).

Almost surely, 2^868339169 is an apocalyptic number.

It is an amenable number.

868339169 is a deficient number, since it is larger than the sum of its proper divisors (1).

868339169 is an equidigital number, since it uses as much as digits as its factorization.

868339169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 53.

The square root of 868339169 is about 29467.5952361234. The cubic root of 868339169 is about 954.0324141805.

The spelling of 868339169 in words is "eight hundred sixty-eight million, three hundred thirty-nine thousand, one hundred sixty-nine".