6720004 has 12 divisors (see below), whose sum is σ = 11953228. Its totient is φ = 3304800.

The previous prime is 6719989. The next prime is 6720011. The reversal of 6720004 is 4000276.

It can be written as a sum of positive squares in 2 ways, for example, as 1188100 + 5531904 = 1090^2 + 2352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13527 + ... + 14014.

Almost surely, 2^6720004 is an apocalyptic number.

It is an amenable number.

6720004 is a deficient number, since it is larger than the sum of its proper divisors (5233224).

6720004 is a wasteful number, since it uses less digits than its factorization.

6720004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27606 (or 27604 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 6720004 is about 2592.2970508798. The cubic root of 6720004 is about 188.7077966547.

The spelling of 6720004 in words is "six million, seven hundred twenty thousand, four".