2109387 has 8 divisors (see below), whose sum is σ = 3214336. Its totient is φ = 1205352.

The previous prime is 2109329. The next prime is 2109391. The reversal of 2109387 is 7839012.

It is a happy number.

2109387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2109387 - 2¹⁰ = 2108363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2109287) 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 7 ways as a sum of consecutive naturals, for example, 50203 + ... + 50244.

It is an arithmetic number, because the mean of its divisors is an integer number (401792).

2^2109387 is an apocalyptic number.

2109387 is a deficient number, since it is larger than the sum of its proper divisors (1104949).

2109387 is a wasteful number, since it uses less digits than its factorization.

2109387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100457.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2109387 is about 1452.3728860041. The cubic root of 2109387 is about 128.2484391969.

The spelling of 2109387 in words is "two million, one hundred nine thousand, three hundred eighty-seven".