6647613 has 16 divisors (see below), whose sum is σ = 10260480. Its totient is φ = 3749616.

The previous prime is 6647593. The next prime is 6647623. The reversal of 6647613 is 3167466.

It is not a de Polignac number, because 6647613 - 2⁵ = 6647581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6647623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (641280).

Almost surely, 2^6647613 is an apocalyptic number.

It is an amenable number.

6647613 is a deficient number, since it is larger than the sum of its proper divisors (3612867).

6647613 is a wasteful number, since it uses less digits than its factorization.

6647613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096.

The product of its digits is 18144, while the sum is 33.

The square root of 6647613 is about 2578.2965306574. The cubic root of 6647613 is about 188.0277328184.

It can be divided in two parts, 6647 and 613, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 6647613 in words is "six million, six hundred forty-seven thousand, six hundred thirteen".