669052 has 12 divisors (see below), whose sum is σ = 1239840. Its totient is φ = 314816.

The previous prime is 669049. The next prime is 669077. The reversal of 669052 is 250966.

It is a self number, because there is not a number n which added to its sum of digits gives 669052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4852 + ... + 4987.

It is an arithmetic number, because the mean of its divisors is an integer number (103320).

2⁶⁶⁹⁰⁵² is an apocalyptic number.

It is an amenable number.

669052 is a deficient number, since it is larger than the sum of its proper divisors (570788).

669052 is a wasteful number, since it uses less digits than its factorization.

669052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9860 (or 9858 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 669052 is about 817.9559890361. The cubic root of 669052 is about 87.4621114874.

The spelling of 669052 in words is "six hundred sixty-nine thousand, fifty-two".