2599889 has 2 divisors, whose sum is σ = 2599890. Its totient is φ = 2599888.

The previous prime is 2599871. The next prime is 2599907. The reversal of 2599889 is 9889952.

It is a balanced prime because it is at equal distance from previous prime (2599871) and next prime (2599907).

It can be written as a sum of positive squares in only one way, i.e., 2455489 + 144400 = 1567^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2599889 - 2⁸ = 2599633 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1299944 + 1299945.

It is an arithmetic number, because the mean of its divisors is an integer number (1299945).

2^2599889 is an apocalyptic number.

It is an amenable number.

2599889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2599889 is an equidigital number, since it uses as much as digits as its factorization.

2599889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 50.

The square root of 2599889 is about 1612.4171296535. The cubic root of 2599889 is about 137.5049298508.

The spelling of 2599889 in words is "two million, five hundred ninety-nine thousand, eight hundred eighty-nine".