2196985 has 16 divisors (see below), whose sum is σ = 3088512. Its totient is φ = 1468800.

The previous prime is 2196979. The next prime is 2197021. The reversal of 2196985 is 5896912.

2196985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2196985 - 2³ = 2196977 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 670 + ... + 2200.

It is an arithmetic number, because the mean of its divisors is an integer number (193032).

2^2196985 is an apocalyptic number.

It is an amenable number.

2196985 is a deficient number, since it is larger than the sum of its proper divisors (891527).

2196985 is a wasteful number, since it uses less digits than its factorization.

2196985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584.

The product of its digits is 38880, while the sum is 40.

The square root of 2196985 is about 1482.2229926701. Note that the first 3 decimals coincide. The cubic root of 2196985 is about 129.9997041413. Note that the first 3 decimals are identical.

The spelling of 2196985 in words is "two million, one hundred ninety-six thousand, nine hundred eighty-five".