2409859 has 2 divisors, whose sum is σ = 2409860. Its totient is φ = 2409858.

The previous prime is 2409839. The next prime is 2409863. The reversal of 2409859 is 9589042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2409859 - 2⁷ = 2409731 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2409829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1204929 + 1204930.

It is an arithmetic number, because the mean of its divisors is an integer number (1204930).

2^2409859 is an apocalyptic number.

2409859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2409859 is an equidigital number, since it uses as much as digits as its factorization.

2409859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2409859 is about 1552.3720559196. The cubic root of 2409859 is about 134.0696712023.

The spelling of 2409859 in words is "two million, four hundred nine thousand, eight hundred fifty-nine".