4999863 has 16 divisors (see below), whose sum is σ = 7335936. Its totient is φ = 3003840.

The previous prime is 4999849. The next prime is 4999867. The reversal of 4999863 is 3689994.

4999863 = 132² + 133² + ... + 258².

It is a happy number.

4999863 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4999863 - 2¹⁰ = 4998839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4999867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3595 + ... + 4787.

It is an arithmetic number, because the mean of its divisors is an integer number (458496).

Almost surely, 2^4999863 is an apocalyptic number.

4999863 is a deficient number, since it is larger than the sum of its proper divisors (2336073).

4999863 is a wasteful number, since it uses less digits than its factorization.

4999863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334.

The product of its digits is 419904, while the sum is 48.

The square root of 4999863 is about 2236.0373431587. The cubic root of 4999863 is about 170.9960328754.

The spelling of 4999863 in words is "four million, nine hundred ninety-nine thousand, eight hundred sixty-three".