6811894 has 4 divisors (see below), whose sum is σ = 10217844. Its totient is φ = 3405946.

The previous prime is 6811891. The next prime is 6811913. The reversal of 6811894 is 4981186.

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 (6811891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702972 + ... + 1702975.

It is an arithmetic number, because the mean of its divisors is an integer number (2554461).

Almost surely, 2^6811894 is an apocalyptic number.

6811894 is a deficient number, since it is larger than the sum of its proper divisors (3405950).

6811894 is a wasteful number, since it uses less digits than its factorization.

6811894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405949.

The product of its digits is 13824, while the sum is 37.

The square root of 6811894 is about 2609.9605361001. The cubic root of 6811894 is about 189.5640420038.

The spelling of 6811894 in words is "six million, eight hundred eleven thousand, eight hundred ninety-four".