2087939 has 6 divisors (see below), whose sum is σ = 2428884. Its totient is φ = 1789620.

The previous prime is 2087927. The next prime is 2087941. The reversal of 2087939 is 9397802.

It is not a de Polignac number, because 2087939 - 2¹⁶ = 2022403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2087909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21257 + ... + 21354.

It is an arithmetic number, because the mean of its divisors is an integer number (404814).

2^2087939 is an apocalyptic number.

2087939 is a deficient number, since it is larger than the sum of its proper divisors (340945).

2087939 is an equidigital number, since it uses as much as digits as its factorization.

2087939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42625 (or 42618 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2087939 is about 1444.9702419081. The cubic root of 2087939 is about 127.8122858839.

It can be divided in two parts, 208793 and 9, that added together give a palindrome (208802).

The spelling of 2087939 in words is "two million, eighty-seven thousand, nine hundred thirty-nine".