6397863 has 8 divisors (see below), whose sum is σ = 8670576. Its totient is φ = 4195200.

The previous prime is 6397849. The next prime is 6397871. The reversal of 6397863 is 3687936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6397863 - 2⁸ = 6397607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17298 + ... + 17663.

It is an arithmetic number, because the mean of its divisors is an integer number (1083822).

Almost surely, 2^6397863 is an apocalyptic number.

6397863 is a deficient number, since it is larger than the sum of its proper divisors (2272713).

6397863 is a wasteful number, since it uses less digits than its factorization.

6397863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35025.

The product of its digits is 163296, while the sum is 42.

The square root of 6397863 is about 2529.3997311615. The cubic root of 6397863 is about 185.6428863038.

It can be divided in two parts, 6397 and 863, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 6397863 in words is "six million, three hundred ninety-seven thousand, eight hundred sixty-three".