6881894 has 4 divisors (see below), whose sum is σ = 10322844. Its totient is φ = 3440946.

The previous prime is 6881893. The next prime is 6881939. The reversal of 6881894 is 4981886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720472 + ... + 1720475.

It is an arithmetic number, because the mean of its divisors is an integer number (2580711).

Almost surely, 2^6881894 is an apocalyptic number.

6881894 is a deficient number, since it is larger than the sum of its proper divisors (3440950).

6881894 is a wasteful number, since it uses less digits than its factorization.

6881894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440949.

The product of its digits is 110592, while the sum is 44.

The square root of 6881894 is about 2623.3364252417. The cubic root of 6881894 is about 190.2111595128.

The spelling of 6881894 in words is "six million, eight hundred eighty-one thousand, eight hundred ninety-four".