6839997896 has 16 divisors (see below), whose sum is σ = 13171618140. Its totient is φ = 3327566400.

The previous prime is 6839997887. The next prime is 6839997961. The reversal of 6839997896 is 6987999386.

It can be written as a sum of positive squares in 2 ways, for example, as 6274224100 + 565773796 = 79210^2 + 23786^2 .

It is a Harshad number since it is a multiple of its sum of digits (74).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11553755 + ... + 11554346.

Almost surely, 2^6839997896 is an apocalyptic number.

It is an amenable number.

6839997896 is a deficient number, since it is larger than the sum of its proper divisors (6331620244).

6839997896 is a wasteful number, since it uses less digits than its factorization.

6839997896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23108144 (or 23108140 counting only the distinct ones).

The product of its digits is 317447424, while the sum is 74.

The square root of 6839997896 is about 82704.2797925234. The cubic root of 6839997896 is about 1898.2437969711.

The spelling of 6839997896 in words is "six billion, eight hundred thirty-nine million, nine hundred ninety-seven thousand, eight hundred ninety-six".