2187064 has 32 divisors (see below), whose sum is σ = 4633200. Its totient is φ = 958720.

The previous prime is 2187061. The next prime is 2187077. The reversal of 2187064 is 4607812.

2187064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187061) 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, 2124 + ... + 2980.

2^2187064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2187064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2316600).

2187064 is an abundant number, since it is smaller than the sum of its proper divisors (2446136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2187064 is a wasteful number, since it uses less digits than its factorization.

2187064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2187064 is about 1478.8725435277. The cubic root of 2187064 is about 129.8037274878.

The spelling of 2187064 in words is "two million, one hundred eighty-seven thousand, sixty-four".