668122 has 16 divisors (see below), whose sum is σ = 1233792. Its totient is φ = 264240.

The previous prime is 668111. The next prime is 668141. The reversal of 668122 is 221866.

668122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1654 + ... + 2017.

It is an arithmetic number, because the mean of its divisors is an integer number (77112).

2⁶⁶⁸¹²² is an apocalyptic number.

668122 is a deficient number, since it is larger than the sum of its proper divisors (565670).

668122 is a wasteful number, since it uses less digits than its factorization.

668122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693.

The product of its digits is 1152, while the sum is 25.

The square root of 668122 is about 817.3873011003. The cubic root of 668122 is about 87.4215678122.

Adding to 668122 its reverse (221866), we get a palindrome (889988).

The spelling of 668122 in words is "six hundred sixty-eight thousand, one hundred twenty-two".