668010 has 32 divisors (see below), whose sum is σ = 1832832. Its totient is φ = 152640.

The previous prime is 668009. The next prime is 668029. The reversal of 668010 is 10866.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381 + ... + 1800.

It is an arithmetic number, because the mean of its divisors is an integer number (57276).

2⁶⁶⁸⁰¹⁰ is an apocalyptic number.

668010 is an abundant number, since it is smaller than the sum of its proper divisors (1164822).

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

668010 is a wasteful number, since it uses less digits than its factorization.

668010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 668010 is about 817.3187872550. The cubic root of 668010 is about 87.4166825952.

Adding to 668010 its reverse (10866), we get a palindrome (678876).

The spelling of 668010 in words is "six hundred sixty-eight thousand, ten".