2051889 has 16 divisors (see below), whose sum is σ = 3148800. Its totient is φ = 1164240.

The previous prime is 2051887. The next prime is 2051891. The reversal of 2051889 is 9881502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2051887) and next prime (2051891).

It is not a de Polignac number, because 2051889 - 2¹ = 2051887 is a prime.

2051889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2051887) 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 15 ways as a sum of consecutive naturals, for example, 3934 + ... + 4424.

It is an arithmetic number, because the mean of its divisors is an integer number (196800).

2^2051889 is an apocalyptic number.

It is an amenable number.

2051889 is a deficient number, since it is larger than the sum of its proper divisors (1096911).

2051889 is a wasteful number, since it uses less digits than its factorization.

2051889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 2051889 is about 1432.4416218471. The cubic root of 2051889 is about 127.0724161783.

The spelling of 2051889 in words is "two million, fifty-one thousand, eight hundred eighty-nine".