6820894 has 4 divisors (see below), whose sum is σ = 10231344. Its totient is φ = 3410446.

The previous prime is 6820873. The next prime is 6820897. The reversal of 6820894 is 4980286.

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 (6820897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1705222 + ... + 1705225.

It is an arithmetic number, because the mean of its divisors is an integer number (2557836).

Almost surely, 2^6820894 is an apocalyptic number.

6820894 is a deficient number, since it is larger than the sum of its proper divisors (3410450).

6820894 is a wasteful number, since it uses less digits than its factorization.

6820894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410449.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 6820894 is about 2611.6841309776. The cubic root of 6820894 is about 189.6474904330.

The spelling of 6820894 in words is "six million, eight hundred twenty thousand, eight hundred ninety-four".