6861613 has 16 divisors (see below), whose sum is σ = 8032896. Its totient is φ = 5797440.

The previous prime is 6861601. The next prime is 6861623. The reversal of 6861613 is 3161686.

It is not a de Polignac number, because 6861613 - 2⁵ = 6861581 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6861623) 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, 8995 + ... + 9727.

It is an arithmetic number, because the mean of its divisors is an integer number (502056).

Almost surely, 2^6861613 is an apocalyptic number.

It is an amenable number.

6861613 is a deficient number, since it is larger than the sum of its proper divisors (1171283).

6861613 is a wasteful number, since it uses less digits than its factorization.

6861613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its digits is 5184, while the sum is 31.

The square root of 6861613 is about 2619.4680757742. The cubic root of 6861613 is about 190.0241243606.

The spelling of 6861613 in words is "six million, eight hundred sixty-one thousand, six hundred thirteen".