668294 has 16 divisors (see below), whose sum is σ = 1124496. Its totient is φ = 295200.

The previous prime is 668273. The next prime is 668303. The reversal of 668294 is 492866.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404 + ... + 1224.

It is an arithmetic number, because the mean of its divisors is an integer number (70281).

2⁶⁶⁸²⁹⁴ is an apocalyptic number.

668294 is a deficient number, since it is larger than the sum of its proper divisors (456202).

668294 is a wasteful number, since it uses less digits than its factorization.

668294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871.

The product of its digits is 20736, while the sum is 35.

The square root of 668294 is about 817.4925076109. The cubic root of 668294 is about 87.4290690467.

It can be divided in two parts, 6682 and 94, that added together give a palindrome (6776).

The spelling of 668294 in words is "six hundred sixty-eight thousand, two hundred ninety-four".