6669513 has 16 divisors (see below), whose sum is σ = 10401600. Its totient is φ = 4212000.

The previous prime is 6669503. The next prime is 6669521. The reversal of 6669513 is 3159666.

It is a de Polignac number, because none of the positive numbers 2^k-6669513 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6669503) 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 15 ways as a sum of consecutive naturals, for example, 5988 + ... + 7013.

It is an arithmetic number, because the mean of its divisors is an integer number (650100).

Almost surely, 2^6669513 is an apocalyptic number.

It is an amenable number.

6669513 is a deficient number, since it is larger than the sum of its proper divisors (3732087).

6669513 is a wasteful number, since it uses less digits than its factorization.

6669513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13029 (or 13023 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 6669513 is about 2582.5400287314. The cubic root of 6669513 is about 188.2339869873.

The spelling of 6669513 in words is "six million, six hundred sixty-nine thousand, five hundred thirteen".