2499859 has 2 divisors, whose sum is σ = 2499860. Its totient is φ = 2499858.

The previous prime is 2499853. The next prime is 2499863. The reversal of 2499859 is 9589942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2499859 - 2¹¹ = 2497811 is a prime.

It is not a weakly prime, because it can be changed into another prime (2499853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249929 + 1249930.

It is an arithmetic number, because the mean of its divisors is an integer number (1249930).

2^2499859 is an apocalyptic number.

2499859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499859 is an equidigital number, since it uses as much as digits as its factorization.

2499859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 2499859 is about 1581.0942413405. The cubic root of 2499859 is about 135.7183292292.

The spelling of 2499859 in words is "two million, four hundred ninety-nine thousand, eight hundred fifty-nine".