336689 has 2 divisors, whose sum is σ = 336690. Its totient is φ = 336688.

The previous prime is 336683. The next prime is 336703. The reversal of 336689 is 986633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336400 + 289 = 580^2 + 17^2 .

It is an emirp because it is prime and its reverse (986633) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-336689 is a prime.

It is a super-2 number, since 2×336689² = 226718965442, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 10.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (336683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168344 + 168345.

It is an arithmetic number, because the mean of its divisors is an integer number (168345).

2³³⁶⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

336689 is a deficient number, since it is larger than the sum of its proper divisors (1).

336689 is an equidigital number, since it uses as much as digits as its factorization.

336689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 336689 is about 580.2490844456. The cubic root of 336689 is about 69.5680199448.

The spelling of 336689 in words is "three hundred thirty-six thousand, six hundred eighty-nine".