6866013 has 16 divisors (see below), whose sum is σ = 11414016. Its totient is φ = 3566640.

The previous prime is 6866003. The next prime is 6866017. The reversal of 6866013 is 3106686.

It is not a de Polignac number, because 6866013 - 2⁴ = 6865997 is a prime.

6866013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6866017) 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, 14631 + ... + 15092.

It is an arithmetic number, because the mean of its divisors is an integer number (713376).

Almost surely, 2^6866013 is an apocalyptic number.

It is an amenable number.

6866013 is a deficient number, since it is larger than the sum of its proper divisors (4548003).

6866013 is a wasteful number, since it uses less digits than its factorization.

6866013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29744.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 6866013 is about 2620.3078063464. The cubic root of 6866013 is about 190.0647332521.

The spelling of 6866013 in words is "six million, eight hundred sixty-six thousand, thirteen".