6664267 has 4 divisors (see below), whose sum is σ = 6690456. Its totient is φ = 6638080.

The previous prime is 6664261. The next prime is 6664277. The reversal of 6664267 is 7624666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6664267 - 2⁷ = 6664139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6664261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12709 + ... + 13222.

It is an arithmetic number, because the mean of its divisors is an integer number (1672614).

Almost surely, 2^6664267 is an apocalyptic number.

6664267 is a deficient number, since it is larger than the sum of its proper divisors (26189).

6664267 is a wasteful number, since it uses less digits than its factorization.

6664267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26188.

The product of its digits is 72576, while the sum is 37.

The square root of 6664267 is about 2581.5241621957. The cubic root of 6664267 is about 188.1846213383.

The spelling of 6664267 in words is "six million, six hundred sixty-four thousand, two hundred sixty-seven".