668414 has 8 divisors (see below), whose sum is σ = 1009800. Its totient is φ = 331816.

The previous prime is 668407. The next prime is 668417. The reversal of 668414 is 414866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668417) by changing a digit.

668414 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (126225).

2⁶⁶⁸⁴¹⁴ is an apocalyptic number.

668414 is a deficient number, since it is larger than the sum of its proper divisors (341386).

668414 is a wasteful number, since it uses less digits than its factorization.

668414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its digits is 4608, while the sum is 29.

The square root of 668414 is about 817.5658994846. The cubic root of 668414 is about 87.4343017040.

The spelling of 668414 in words is "six hundred sixty-eight thousand, four hundred fourteen".