6664475 has 12 divisors (see below), whose sum is σ = 8303040. Its totient is φ = 5306400.

The previous prime is 6664453. The next prime is 6664481. The reversal of 6664475 is 5744666.

It is not a de Polignac number, because 6664475 - 2¹⁰ = 6663451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6230 + ... + 7220.

It is an arithmetic number, because the mean of its divisors is an integer number (691920).

Almost surely, 2^6664475 is an apocalyptic number.

6664475 is a deficient number, since it is larger than the sum of its proper divisors (1638565).

6664475 is a wasteful number, since it uses less digits than its factorization.

6664475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1265 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 6664475 is about 2581.5644481593. The cubic root of 6664475 is about 188.1865791427.

The spelling of 6664475 in words is "six million, six hundred sixty-four thousand, four hundred seventy-five".