2987109 has 12 divisors (see below), whose sum is σ = 4386252. Its totient is φ = 1958400.

The previous prime is 2987099. The next prime is 2987113. The reversal of 2987109 is 9017892.

It is a happy number.

2987109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 956484 + 2030625 = 978^2 + 1425^2 .

It is not a de Polignac number, because 2987109 - 2¹¹ = 2985061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2172 + ... + 3269.

It is an arithmetic number, because the mean of its divisors is an integer number (365521).

2^2987109 is an apocalyptic number.

It is an amenable number.

2987109 is a deficient number, since it is larger than the sum of its proper divisors (1399143).

2987109 is a wasteful number, since it uses less digits than its factorization.

2987109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508 (or 5505 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2987109 is about 1728.3254901783. The cubic root of 2987109 is about 144.0180822200.

The spelling of 2987109 in words is "two million, nine hundred eighty-seven thousand, one hundred nine".