668802 has 8 divisors (see below), whose sum is σ = 1337616. Its totient is φ = 222932.

The previous prime is 668791. The next prime is 668803. The reversal of 668802 is 208866.

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

668802 is an admirable number.

It is a super-2 number, since 2×668802² = 894592230408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 668802.

It is not an unprimeable number, because it can be changed into a prime (668803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55728 + ... + 55739.

It is an arithmetic number, because the mean of its divisors is an integer number (167202).

2⁶⁶⁸⁸⁰² is an apocalyptic number.

668802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

668802 is a wasteful number, since it uses less digits than its factorization.

668802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111472.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 668802 is about 817.8031547995. The cubic root of 668802 is about 87.4512163442.

The spelling of 668802 in words is "six hundred sixty-eight thousand, eight hundred two".