6808438087 has 4 divisors (see below), whose sum is σ = 7427387016. Its totient is φ = 6189489160.

The previous prime is 6808438019. The next prime is 6808438097. The reversal of 6808438087 is 7808348086.

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 6808438087 - 2²⁷ = 6674220359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6808438097) 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, 309474448 + ... + 309474469.

It is an arithmetic number, because the mean of its divisors is an integer number (1856846754).

Almost surely, 2^6808438087 is an apocalyptic number.

6808438087 is a deficient number, since it is larger than the sum of its proper divisors (618948929).

6808438087 is a wasteful number, since it uses less digits than its factorization.

6808438087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618948928.

The product of its (nonzero) digits is 2064384, while the sum is 52.

The square root of 6808438087 is about 82513.2600677006. The cubic root of 6808438087 is about 1895.3197908289.

Subtracting 6808438087 from its reverse (7808348086), we obtain a palindrome (999909999).

The spelling of 6808438087 in words is "six billion, eight hundred eight million, four hundred thirty-eight thousand, eighty-seven".