669084 has 24 divisors (see below), whose sum is σ = 1681680. Its totient is φ = 205824.

The previous prime is 669077. The next prime is 669089. The reversal of 669084 is 480966.

669084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669089) by changing a digit.

669084 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1989 + ... + 2300.

It is an arithmetic number, because the mean of its divisors is an integer number (70070).

2⁶⁶⁹⁰⁸⁴ is an apocalyptic number.

It is an amenable number.

669084 is an abundant number, since it is smaller than the sum of its proper divisors (1012596).

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

669084 is a wasteful number, since it uses less digits than its factorization.

669084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309 (or 4307 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 669084 is about 817.9755497568. The cubic root of 669084 is about 87.4635058697.

The spelling of 669084 in words is "six hundred sixty-nine thousand, eighty-four".