6387863 has 2 divisors, whose sum is σ = 6387864. Its totient is φ = 6387862.

The previous prime is 6387853. The next prime is 6387877. The reversal of 6387863 is 3687836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6387863 - 2¹⁰ = 6386839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6387863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6387803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3193931 + 3193932.

It is an arithmetic number, because the mean of its divisors is an integer number (3193932).

Almost surely, 2^6387863 is an apocalyptic number.

6387863 is a deficient number, since it is larger than the sum of its proper divisors (1).

6387863 is an equidigital number, since it uses as much as digits as its factorization.

6387863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 6387863 is about 2527.4222045396. The cubic root of 6387863 is about 185.5461145683.

The spelling of 6387863 in words is "six million, three hundred eighty-seven thousand, eight hundred sixty-three".