669304 has 8 divisors (see below), whose sum is σ = 1254960. Its totient is φ = 334648.

The previous prime is 669301. The next prime is 669311. The reversal of 669304 is 403966.

669304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41824 + ... + 41839.

It is an arithmetic number, because the mean of its divisors is an integer number (156870).

2⁶⁶⁹³⁰⁴ is an apocalyptic number.

It is an amenable number.

669304 is a deficient number, since it is larger than the sum of its proper divisors (585656).

669304 is a wasteful number, since it uses less digits than its factorization.

669304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83669 (or 83665 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 669304 is about 818.1100170515. The cubic root of 669304 is about 87.4730910452.

The spelling of 669304 in words is "six hundred sixty-nine thousand, three hundred four".