868349 has 2 divisors, whose sum is σ = 868350. Its totient is φ = 868348.

The previous prime is 868337. The next prime is 868369. The reversal of 868349 is 943868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465124 + 403225 = 682^2 + 635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868349 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434174 + 434175.

It is an arithmetic number, because the mean of its divisors is an integer number (434175).

2⁸⁶⁸³⁴⁹ is an apocalyptic number.

It is an amenable number.

868349 is a deficient number, since it is larger than the sum of its proper divisors (1).

868349 is an equidigital number, since it uses as much as digits as its factorization.

868349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 868349 is about 931.8524561324. The cubic root of 868349 is about 95.4036014562.

The spelling of 868349 in words is "eight hundred sixty-eight thousand, three hundred forty-nine".