2087789 has 4 divisors (see below), whose sum is σ = 2277600. Its totient is φ = 1897980.

The previous prime is 2087773. The next prime is 2087791. The reversal of 2087789 is 9877802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2087789 - 2⁴ = 2087773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 8.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94889 + ... + 94910.

It is an arithmetic number, because the mean of its divisors is an integer number (569400).

2^2087789 is an apocalyptic number.

It is an amenable number.

2087789 is a deficient number, since it is larger than the sum of its proper divisors (189811).

2087789 is a wasteful number, since it uses less digits than its factorization.

2087789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189810.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 2087789 is about 1444.9183367928. The cubic root of 2087789 is about 127.8092250821.

It can be divided in two parts, 208 and 7789, that added together give a palindrome (7997).

The spelling of 2087789 in words is "two million, eighty-seven thousand, seven hundred eighty-nine".