6811394 has 4 divisors (see below), whose sum is σ = 10217094. Its totient is φ = 3405696.

The previous prime is 6811393. The next prime is 6811397. The reversal of 6811394 is 4931186.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 5736025 + 1075369 = 2395^2 + 1037^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6811394.

It is not an unprimeable number, because it can be changed into a prime (6811393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702847 + ... + 1702850.

Almost surely, 2^6811394 is an apocalyptic number.

6811394 is a deficient number, since it is larger than the sum of its proper divisors (3405700).

6811394 is a wasteful number, since it uses less digits than its factorization.

6811394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405699.

The product of its digits is 5184, while the sum is 32.

The square root of 6811394 is about 2609.8647474534. The cubic root of 6811394 is about 189.5594038254.

The spelling of 6811394 in words is "six million, eight hundred eleven thousand, three hundred ninety-four".