6881613 has 16 divisors (see below), whose sum is σ = 9616320. Its totient is φ = 4371584.

The previous prime is 6881603. The next prime is 6881639. The reversal of 6881613 is 3161886.

It is a cyclic number.

It is not a de Polignac number, because 6881613 - 2¹⁰ = 6880589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881603) 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, 6745 + ... + 7697.

It is an arithmetic number, because the mean of its divisors is an integer number (601020).

Almost surely, 2^6881613 is an apocalyptic number.

It is an amenable number.

6881613 is a deficient number, since it is larger than the sum of its proper divisors (2734707).

6881613 is a wasteful number, since it uses less digits than its factorization.

6881613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its digits is 6912, while the sum is 33.

The square root of 6881613 is about 2623.2828669436. The cubic root of 6881613 is about 190.2085705906.

The spelling of 6881613 in words is "six million, eight hundred eighty-one thousand, six hundred thirteen".