668794 has 32 divisors (see below), whose sum is σ = 1253376. Its totient is φ = 261360.

The previous prime is 668791. The next prime is 668803. The reversal of 668794 is 497866.

668794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (668791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9949 + ... + 10015.

It is an arithmetic number, because the mean of its divisors is an integer number (39168).

2⁶⁶⁸⁷⁹⁴ is an apocalyptic number.

668794 is a deficient number, since it is larger than the sum of its proper divisors (584582).

668794 is a wasteful number, since it uses less digits than its factorization.

668794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130.

The product of its digits is 72576, while the sum is 40.

The square root of 668794 is about 817.7982636323. The cubic root of 668794 is about 87.4508676548.

The spelling of 668794 in words is "six hundred sixty-eight thousand, seven hundred ninety-four".