6809973 has 4 divisors (see below), whose sum is σ = 9079968. Its totient is φ = 4539980.

The previous prime is 6809927. The next prime is 6809981. The reversal of 6809973 is 3799086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6809973 - 2⁸ = 6809717 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134993 + ... + 1134998.

It is an arithmetic number, because the mean of its divisors is an integer number (2269992).

Almost surely, 2^6809973 is an apocalyptic number.

It is an amenable number.

6809973 is a deficient number, since it is larger than the sum of its proper divisors (2269995).

6809973 is a wasteful number, since it uses less digits than its factorization.

6809973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269994.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 6809973 is about 2609.5924969236. The cubic root of 6809973 is about 189.5462208828.

The spelling of 6809973 in words is "six million, eight hundred nine thousand, nine hundred seventy-three".