2219859 has 8 divisors (see below), whose sum is σ = 3288720. Its totient is φ = 1479888.

The previous prime is 2219849. The next prime is 2219869. The reversal of 2219859 is 9589122.

It is an interprime number because it is at equal distance from previous prime (2219849) and next prime (2219869).

It is not a de Polignac number, because 2219859 - 2⁷ = 2219731 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2219839) 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 in 7 ways as a sum of consecutive naturals, for example, 41082 + ... + 41135.

It is an arithmetic number, because the mean of its divisors is an integer number (411090).

2^2219859 is an apocalyptic number.

2219859 is a deficient number, since it is larger than the sum of its proper divisors (1068861).

2219859 is an equidigital number, since it uses as much as digits as its factorization.

2219859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82226 (or 82220 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2219859 is about 1489.9191253219. The cubic root of 2219859 is about 130.4493131204.

It can be divided in two parts, 22 and 19859, that added together give a square (19881 = 141²).

The spelling of 2219859 in words is "two million, two hundred nineteen thousand, eight hundred fifty-nine".