668882 has 16 divisors (see below), whose sum is σ = 1078272. Its totient is φ = 310080.

The previous prime is 668879. The next prime is 668903. The reversal of 668882 is 288866.

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, 3407 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (67392).

2⁶⁶⁸⁸⁸² is an apocalyptic number.

668882 is a deficient number, since it is larger than the sum of its proper divisors (409390).

668882 is a wasteful number, since it uses less digits than its factorization.

668882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its digits is 36864, while the sum is 38.

The square root of 668882 is about 817.8520648626. The cubic root of 668882 is about 87.4547030854.

The spelling of 668882 in words is "six hundred sixty-eight thousand, eight hundred eighty-two".