2087838 has 24 divisors (see below), whose sum is σ = 4790448. Its totient is φ = 654912.

The previous prime is 2087837. The next prime is 2087857. The reversal of 2087838 is 8387802.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3106 + ... + 3717.

It is an arithmetic number, because the mean of its divisors is an integer number (199602).

2^2087838 is an apocalyptic number.

2087838 is an abundant number, since it is smaller than the sum of its proper divisors (2702610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2087838 is a wasteful number, since it uses less digits than its factorization.

2087838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848 (or 6845 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2087838 is about 1444.9352926688. The cubic root of 2087838 is about 127.8102249602.

Subtracting from 2087838 its sum of digits (36), we obtain a palindrome (2087802).

The spelling of 2087838 in words is "two million, eighty-seven thousand, eight hundred thirty-eight".