2599859 has 2 divisors, whose sum is σ = 2599860. Its totient is φ = 2599858.

The previous prime is 2599847. The next prime is 2599867. The reversal of 2599859 is 9589952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2599859 - 2⁴ = 2599843 is a prime.

It is not a weakly prime, because it can be changed into another prime (2599819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1299929 + 1299930.

It is an arithmetic number, because the mean of its divisors is an integer number (1299930).

2^2599859 is an apocalyptic number.

2599859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2599859 is an equidigital number, since it uses as much as digits as its factorization.

2599859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 47.

The square root of 2599859 is about 1612.4078268230. The cubic root of 2599859 is about 137.5044009611.

The spelling of 2599859 in words is "two million, five hundred ninety-nine thousand, eight hundred fifty-nine".