6138863 has 2 divisors, whose sum is σ = 6138864. Its totient is φ = 6138862.

The previous prime is 6138859. The next prime is 6138871. The reversal of 6138863 is 3688316.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6138863 - 2² = 6138859 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6138823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3069431 + 3069432.

It is an arithmetic number, because the mean of its divisors is an integer number (3069432).

Almost surely, 2^6138863 is an apocalyptic number.

6138863 is a deficient number, since it is larger than the sum of its proper divisors (1).

6138863 is an equidigital number, since it uses as much as digits as its factorization.

6138863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 6138863 is about 2477.6729001222. The cubic root of 6138863 is about 183.1032194622.

The spelling of 6138863 in words is "six million, one hundred thirty-eight thousand, eight hundred sixty-three".