6667845 has 8 divisors (see below), whose sum is σ = 10668576. Its totient is φ = 3556176.

The previous prime is 6667819. The next prime is 6667853. The reversal of 6667845 is 5487666.

It is a happy number.

6667845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6667845 - 2⁵ = 6667813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6667797 and 6667806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222247 + ... + 222276.

It is an arithmetic number, because the mean of its divisors is an integer number (1333572).

Almost surely, 2^6667845 is an apocalyptic number.

It is an amenable number.

6667845 is a deficient number, since it is larger than the sum of its proper divisors (4000731).

6667845 is a wasteful number, since it uses less digits than its factorization.

6667845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444531.

The product of its digits is 241920, while the sum is 42.

The square root of 6667845 is about 2582.2170706585. The cubic root of 6667845 is about 188.2182936642.

The spelling of 6667845 in words is "six million, six hundred sixty-seven thousand, eight hundred forty-five".