6838861 has 2 divisors, whose sum is σ = 6838862. Its totient is φ = 6838860.

The previous prime is 6838847. The next prime is 6838883. The reversal of 6838861 is 1688386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4862025 + 1976836 = 2205^2 + 1406^2 .

It is a cyclic number.

It is not a de Polignac number, because 6838861 - 2¹³ = 6830669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6838801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3419430 + 3419431.

It is an arithmetic number, because the mean of its divisors is an integer number (3419431).

Almost surely, 2^6838861 is an apocalyptic number.

It is an amenable number.

6838861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6838861 is an equidigital number, since it uses as much as digits as its factorization.

6838861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 40.

The square root of 6838861 is about 2615.1216032911. The cubic root of 6838861 is about 189.8138620264.

The spelling of 6838861 in words is "six million, eight hundred thirty-eight thousand, eight hundred sixty-one".