346669 has 2 divisors, whose sum is σ = 346670. Its totient is φ = 346668.

The previous prime is 346667. The next prime is 346699. The reversal of 346669 is 966643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213444 + 133225 = 462^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 346669 - 2¹ = 346667 is a prime.

It is a super-2 number, since 2×346669² = 240358791122, which contains 22 as substring.

Together with 346667, it forms a pair of twin primes.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173334 + 173335.

It is an arithmetic number, because the mean of its divisors is an integer number (173335).

2³⁴⁶⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

346669 is a deficient number, since it is larger than the sum of its proper divisors (1).

346669 is an equidigital number, since it uses as much as digits as its factorization.

346669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 34.

The square root of 346669 is about 588.7860392367. The cubic root of 346669 is about 70.2487071439.

The spelling of 346669 in words is "three hundred forty-six thousand, six hundred sixty-nine".