6810494 has 4 divisors (see below), whose sum is σ = 10215744. Its totient is φ = 3405246.

The previous prime is 6810481. The next prime is 6810497. The reversal of 6810494 is 4940186.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6810494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6810497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702622 + ... + 1702625.

It is an arithmetic number, because the mean of its divisors is an integer number (2553936).

Almost surely, 2^6810494 is an apocalyptic number.

6810494 is a deficient number, since it is larger than the sum of its proper divisors (3405250).

6810494 is a wasteful number, since it uses less digits than its factorization.

6810494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405249.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 6810494 is about 2609.6923190292. The cubic root of 6810494 is about 189.5510545321.

The spelling of 6810494 in words is "six million, eight hundred ten thousand, four hundred ninety-four".