2087980 has 12 divisors (see below), whose sum is σ = 4384800. Its totient is φ = 835184.

The previous prime is 2087941. The next prime is 2087983. The reversal of 2087980 is 897802.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2087983) 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 3 ways as a sum of consecutive naturals, for example, 52180 + ... + 52219.

It is an arithmetic number, because the mean of its divisors is an integer number (365400).

2^2087980 is an apocalyptic number.

2087980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2087980 is an abundant number, since it is smaller than the sum of its proper divisors (2296820).

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

2087980 is a wasteful number, since it uses less digits than its factorization.

2087980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104408 (or 104406 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2087980 is about 1444.9844289818. The cubic root of 2087980 is about 127.8131224775.

Subtracting from 2087980 its sum of digits (34), we obtain a triangular number (2087946 = T₂₀₄₃).

The spelling of 2087980 in words is "two million, eighty-seven thousand, nine hundred eighty".