669064 has 16 divisors (see below), whose sum is σ = 1368720. Its totient is φ = 304080.

The previous prime is 669049. The next prime is 669077. The reversal of 669064 is 460966.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3714 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (85545).

2⁶⁶⁹⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

669064 is an abundant number, since it is smaller than the sum of its proper divisors (699656).

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

669064 is a wasteful number, since it uses less digits than its factorization.

669064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7620 (or 7616 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 669064 is about 817.9633243612. The cubic root of 669064 is about 87.4626343860.

The spelling of 669064 in words is "six hundred sixty-nine thousand, sixty-four".