2187039 has 8 divisors (see below), whose sum is σ = 2923312. Its totient is φ = 1454400.

The previous prime is 2187037. The next prime is 2187043. The reversal of 2187039 is 9307812.

It is a happy number.

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

It is not a de Polignac number, because 2187039 - 2¹ = 2187037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2186997 and 2187015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187037) 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 7 ways as a sum of consecutive naturals, for example, 1197 + ... + 2409.

It is an arithmetic number, because the mean of its divisors is an integer number (365414).

2^2187039 is an apocalyptic number.

2187039 is a deficient number, since it is larger than the sum of its proper divisors (736273).

2187039 is a wasteful number, since it uses less digits than its factorization.

2187039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817.

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

The square root of 2187039 is about 1478.8640911186. The cubic root of 2187039 is about 129.8032328969.

The spelling of 2187039 in words is "two million, one hundred eighty-seven thousand, thirty-nine".