6669824 has 40 divisors (see below), whose sum is σ = 15238608. Its totient is φ = 2856960.

The previous prime is 6669809. The next prime is 6669827. The reversal of 6669824 is 4289666.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2654 + ... + 4514.

Almost surely, 2^6669824 is an apocalyptic number.

6669824 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6669824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7619304).

6669824 is an abundant number, since it is smaller than the sum of its proper divisors (8568784).

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

6669824 is an equidigital number, since it uses as much as digits as its factorization.

6669824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886 (or 1870 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 6669824 is about 2582.6002400681. The cubic root of 6669824 is about 188.2369127312.

The spelling of 6669824 in words is "six million, six hundred sixty-nine thousand, eight hundred twenty-four".