6883981 has 8 divisors (see below), whose sum is σ = 7508480. Its totient is φ = 6273072.

The previous prime is 6883951. The next prime is 6884027. The reversal of 6883981 is 1893886.

It is a happy number.

6883981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6883981 - 2¹⁵ = 6851213 is a prime.

It is a super-2 number, since 2×6883981² = 94778388816722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6883931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2325 + ... + 4378.

It is an arithmetic number, because the mean of its divisors is an integer number (938560).

Almost surely, 2^6883981 is an apocalyptic number.

It is an amenable number.

6883981 is a deficient number, since it is larger than the sum of its proper divisors (624499).

6883981 is a wasteful number, since it uses less digits than its factorization.

6883981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6795.

The product of its digits is 82944, while the sum is 43.

The square root of 6883981 is about 2623.7341709861. The cubic root of 6883981 is about 190.2303853522.

The spelling of 6883981 in words is "six million, eight hundred eighty-three thousand, nine hundred eighty-one".