6442863 has 24 divisors (see below), whose sum is σ = 10246320. Its totient is φ = 3588480.

The previous prime is 6442861. The next prime is 6442871. The reversal of 6442863 is 3682446.

6442863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6442863 - 2¹ = 6442861 is a prime.

It is a super-3 number, since 3×6442863³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5493 + ... + 6561.

It is an arithmetic number, because the mean of its divisors is an integer number (426930).

Almost surely, 2^6442863 is an apocalyptic number.

6442863 is a deficient number, since it is larger than the sum of its proper divisors (3803457).

6442863 is a wasteful number, since it uses less digits than its factorization.

6442863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1120 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 6442863 is about 2538.2795354334. The cubic root of 6442863 is about 186.0771156705.

The spelling of 6442863 in words is "six million, four hundred forty-two thousand, eight hundred sixty-three".