345668 has 12 divisors (see below), whose sum is σ = 611520. Its totient is φ = 170952.

The previous prime is 345659. The next prime is 345673. The reversal of 345668 is 866543.

It is a d-powerful number, because it can be written as 3³ + 4⁸ + 6² + 5³ + 6⁷ + 8 .

It is a plaindrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8 + ... + 831.

It is an arithmetic number, because the mean of its divisors is an integer number (50960).

2³⁴⁵⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

345668 is a deficient number, since it is larger than the sum of its proper divisors (265852).

345668 is a wasteful number, since it uses less digits than its factorization.

345668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 944 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 345668 is about 587.9353705978. The cubic root of 345668 is about 70.1810280358.

The spelling of 345668 in words is "three hundred forty-five thousand, six hundred sixty-eight".