2164885 has 8 divisors (see below), whose sum is σ = 2681856. Its totient is φ = 1675920.

The previous prime is 2164859. The next prime is 2164901. The reversal of 2164885 is 5884612.

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

It is not a de Polignac number, because 2164885 - 2⁵ = 2164853 is a prime.

It is a Duffinian number.

2164885 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2164885.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6829 + ... + 7138.

It is an arithmetic number, because the mean of its divisors is an integer number (335232).

2^2164885 is an apocalyptic number.

It is an amenable number.

2164885 is a deficient number, since it is larger than the sum of its proper divisors (516971).

2164885 is a wasteful number, since it uses less digits than its factorization.

2164885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14003.

The product of its digits is 15360, while the sum is 34.

The square root of 2164885 is about 1471.3548178465. The cubic root of 2164885 is about 129.3634563047.

The spelling of 2164885 in words is "two million, one hundred sixty-four thousand, eight hundred eighty-five".