6806439023 has 4 divisors (see below), whose sum is σ = 6813911328. Its totient is φ = 6798966720.

The previous prime is 6806439001. The next prime is 6806439049. The reversal of 6806439023 is 3209346086.

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

It is a cyclic number.

It is not a de Polignac number, because 6806439023 - 2⁶ = 6806438959 is a prime.

It is a super-2 number, since 2×6806439023² = 92655224347634389058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6806439053) 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, 3734786 + ... + 3736607.

It is an arithmetic number, because the mean of its divisors is an integer number (1703477832).

Almost surely, 2^6806439023 is an apocalyptic number.

6806439023 is a deficient number, since it is larger than the sum of its proper divisors (7472305).

6806439023 is an equidigital number, since it uses as much as digits as its factorization.

6806439023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7472304.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 6806439023 is about 82501.1455859857. The cubic root of 6806439023 is about 1895.1342741510.

The spelling of 6806439023 in words is "six billion, eight hundred six million, four hundred thirty-nine thousand, twenty-three".