6669072 has 60 divisors (see below), whose sum is σ = 19319820. Its totient is φ = 2145024.

The previous prime is 6669071. The next prime is 6669097. The reversal of 6669072 is 2709666.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 4309776 = 1536^2 + 2076^2 .

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 (6669071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3378 + ... + 4974.

It is an arithmetic number, because the mean of its divisors is an integer number (321997).

Almost surely, 2^6669072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6669072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9659910).

6669072 is an abundant number, since it is smaller than the sum of its proper divisors (12650748).

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

6669072 is a wasteful number, since it uses less digits than its factorization.

6669072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 6669072 is about 2582.4546462620. The cubic root of 6669072 is about 188.2298381078.

The spelling of 6669072 in words is "six million, six hundred sixty-nine thousand, seventy-two".