669036 has 24 divisors (see below), whose sum is σ = 1576960. Its totient is φ = 220752.

The previous prime is 669029. The next prime is 669049. The reversal of 669036 is 630966.

669036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 668994 and 669012.

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, 1305 + ... + 1743.

2⁶⁶⁹⁰³⁶ is an apocalyptic number.

It is an amenable number.

669036 is an abundant number, since it is smaller than the sum of its proper divisors (907924).

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

669036 is a wasteful number, since it uses less digits than its factorization.

669036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 669036 is about 817.9462085003. The cubic root of 669036 is about 87.4614142795.

The spelling of 669036 in words is "six hundred sixty-nine thousand, thirty-six".