669066 has 16 divisors (see below), whose sum is σ = 1408800. Its totient is φ = 211248.

The previous prime is 669049. The next prime is 669077. The reversal of 669066 is 660966.

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, 2821 + ... + 3048.

It is an arithmetic number, because the mean of its divisors is an integer number (88050).

2⁶⁶⁹⁰⁶⁶ is an apocalyptic number.

669066 is an abundant number, since it is smaller than the sum of its proper divisors (739734).

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

669066 is a wasteful number, since it uses less digits than its factorization.

669066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 669066 is about 817.9645469090. The cubic root of 669066 is about 87.4627215351.

Subtracting from 669066 its reverse (660966), we obtain a square (8100 = 90²).

The spelling of 669066 in words is "six hundred sixty-nine thousand, sixty-six".