6669504 has 42 divisors (see below), whose sum is σ = 19118580. Its totient is φ = 2222976.

The previous prime is 6669503. The next prime is 6669521. The reversal of 6669504 is 4059666.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6669503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5214 + ... + 6365.

Almost surely, 2^6669504 is an apocalyptic number.

6669504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6669504 is an abundant number, since it is smaller than the sum of its proper divisors (12449076).

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

6669504 is a wasteful number, since it uses less digits than its factorization.

6669504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11597 (or 11584 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6669504 is about 2582.5382862602. The cubic root of 6669504 is about 188.2339023181.

The spelling of 6669504 in words is "six million, six hundred sixty-nine thousand, five hundred four".