6664485 has 32 divisors (see below), whose sum is σ = 11104128. Its totient is φ = 3411200.

The previous prime is 6664481. The next prime is 6664501. The reversal of 6664485 is 5844666.

It is not a de Polignac number, because 6664485 - 2² = 6664481 is a prime.

It is a Curzon number.

6664485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664481) 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 31 ways as a sum of consecutive naturals, for example, 65935 + ... + 66035.

It is an arithmetic number, because the mean of its divisors is an integer number (347004).

Almost surely, 2^6664485 is an apocalyptic number.

It is an amenable number.

6664485 is a deficient number, since it is larger than the sum of its proper divisors (4439643).

6664485 is a wasteful number, since it uses less digits than its factorization.

6664485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

The product of its digits is 138240, while the sum is 39.

The square root of 6664485 is about 2581.5663849686. The cubic root of 6664485 is about 188.1866732669.

It can be divided in two parts, 666 and 4485, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 6664485 in words is "six million, six hundred sixty-four thousand, four hundred eighty-five".