2499863 has 2 divisors, whose sum is σ = 2499864. Its totient is φ = 2499862.

The previous prime is 2499859. The next prime is 2499881. The reversal of 2499863 is 3689942.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2499863 - 2² = 2499859 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2499863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2499803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249931 + 1249932.

It is an arithmetic number, because the mean of its divisors is an integer number (1249932).

2^2499863 is an apocalyptic number.

2499863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499863 is an equidigital number, since it uses as much as digits as its factorization.

2499863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 2499863 is about 1581.0955062867. The cubic root of 2499863 is about 135.7184016164.

The spelling of 2499863 in words is "two million, four hundred ninety-nine thousand, eight hundred sixty-three".