6809023 has 4 divisors (see below), whose sum is σ = 7332808. Its totient is φ = 6285240.

The previous prime is 6808979. The next prime is 6809029. The reversal of 6809023 is 3209086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3209086 = 2 ⋅1604543.

It is not a de Polignac number, because 6809023 - 2²¹ = 4711871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6808982 and 6809000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809029) 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 in 3 ways as a sum of consecutive naturals, for example, 261873 + ... + 261898.

It is an arithmetic number, because the mean of its divisors is an integer number (1833202).

Almost surely, 2^6809023 is an apocalyptic number.

6809023 is a deficient number, since it is larger than the sum of its proper divisors (523785).

6809023 is a wasteful number, since it uses less digits than its factorization.

6809023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523784.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 6809023 is about 2609.4104698188. The cubic root of 6809023 is about 189.5374064924.

The spelling of 6809023 in words is "six million, eight hundred nine thousand, twenty-three".