6664514 has 16 divisors (see below), whose sum is σ = 10370808. Its totient is φ = 3209472.

The previous prime is 6664513. The next prime is 6664517. The reversal of 6664514 is 4154666.

It can be written as a sum of positive squares in 4 ways, for example, as 5139289 + 1525225 = 2267^2 + 1235^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7964 + ... + 8760.

Almost surely, 2^6664514 is an apocalyptic number.

6664514 is a deficient number, since it is larger than the sum of its proper divisors (3706294).

6664514 is a wasteful number, since it uses less digits than its factorization.

6664514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949.

The product of its digits is 17280, while the sum is 32.

The square root of 6664514 is about 2581.5720017075. The cubic root of 6664514 is about 188.1869462265.

The spelling of 6664514 in words is "six million, six hundred sixty-four thousand, five hundred fourteen".