6828139 has 2 divisors, whose sum is σ = 6828140. Its totient is φ = 6828138.

The previous prime is 6828131. The next prime is 6828167. The reversal of 6828139 is 9318286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6828139 - 2³ = 6828131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6828098 and 6828107.

It is not a weakly prime, because it can be changed into another prime (6828131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3414069 + 3414070.

It is an arithmetic number, because the mean of its divisors is an integer number (3414070).

Almost surely, 2^6828139 is an apocalyptic number.

6828139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6828139 is an equidigital number, since it uses as much as digits as its factorization.

6828139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 6828139 is about 2613.0707988878. The cubic root of 6828139 is about 189.7146131044.

The spelling of 6828139 in words is "six million, eight hundred twenty-eight thousand, one hundred thirty-nine".