6682813 has 4 divisors (see below), whose sum is σ = 7034560. Its totient is φ = 6331068.

The previous prime is 6682801. The next prime is 6682843. The reversal of 6682813 is 3182866.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6682813 - 2⁹ = 6682301 is a prime.

6682813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6682843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175845 + ... + 175882.

It is an arithmetic number, because the mean of its divisors is an integer number (1758640).

Almost surely, 2^6682813 is an apocalyptic number.

It is an amenable number.

6682813 is a deficient number, since it is larger than the sum of its proper divisors (351747).

6682813 is a wasteful number, since it uses less digits than its factorization.

6682813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351746.

The product of its digits is 13824, while the sum is 34.

The square root of 6682813 is about 2585.1137305736. The cubic root of 6682813 is about 188.3590260890.

It can be divided in two parts, 668 and 2813, that added together give a square (3481 = 59²).

The spelling of 6682813 in words is "six million, six hundred eighty-two thousand, eight hundred thirteen".