2031889 has 8 divisors (see below), whose sum is σ = 2136960. Its totient is φ = 1931908.

The previous prime is 2031863. The next prime is 2031893. The reversal of 2031889 is 9881302.

It is not a de Polignac number, because 2031889 - 2¹⁵ = 1999121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031889.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12084 + ... + 12250.

It is an arithmetic number, because the mean of its divisors is an integer number (267120).

2^2031889 is an apocalyptic number.

It is an amenable number.

2031889 is a deficient number, since it is larger than the sum of its proper divisors (105071).

2031889 is an frugal number, since it uses more digits than its factorization.

2031889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2031889 is about 1425.4434397758. The cubic root of 2031889 is about 126.6582042669.

The spelling of 2031889 in words is "two million, thirty-one thousand, eight hundred eighty-nine".