2066604 has 12 divisors (see below), whose sum is σ = 4822104. Its totient is φ = 688864.

The previous prime is 2066599. The next prime is 2066609. The reversal of 2066604 is 4066602.

It is an interprime number because it is at equal distance from previous prime (2066599) and next prime (2066609).

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2066609) 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 3 ways as a sum of consecutive naturals, for example, 86097 + ... + 86120.

It is an arithmetic number, because the mean of its divisors is an integer number (401842).

2^2066604 is an apocalyptic number.

It is an amenable number.

2066604 is an abundant number, since it is smaller than the sum of its proper divisors (2755500).

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

2066604 is a wasteful number, since it uses less digits than its factorization.

2066604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172224 (or 172222 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2066604 is about 1437.5687809632. The cubic root of 2066604 is about 127.3754570087.

The spelling of 2066604 in words is "two million, sixty-six thousand, six hundred four".