6664546 has 8 divisors (see below), whose sum is σ = 11424960. Its totient is φ = 2856228.

The previous prime is 6664543. The next prime is 6664547. The reversal of 6664546 is 6454666.

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

It is a super-2 number, since 2×6664546² = 88832346772232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6664543) 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, 238006 + ... + 238033.

It is an arithmetic number, because the mean of its divisors is an integer number (1428120).

Almost surely, 2^6664546 is an apocalyptic number.

6664546 is a deficient number, since it is larger than the sum of its proper divisors (4760414).

6664546 is a wasteful number, since it uses less digits than its factorization.

6664546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476048.

The product of its digits is 103680, while the sum is 37.

The square root of 6664546 is about 2581.5781994741. The cubic root of 6664546 is about 188.1872474224.

The spelling of 6664546 in words is "six million, six hundred sixty-four thousand, five hundred forty-six".