2066939 has 4 divisors (see below), whose sum is σ = 2362224. Its totient is φ = 1771656.

The previous prime is 2066929. The next prime is 2066951. The reversal of 2066939 is 9396602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2066939 - 2⁴ = 2066923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2066899 and 2066908.

It is not an unprimeable number, because it can be changed into a prime (2066929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147632 + ... + 147645.

It is an arithmetic number, because the mean of its divisors is an integer number (590556).

2^2066939 is an apocalyptic number.

2066939 is a deficient number, since it is larger than the sum of its proper divisors (295285).

2066939 is an equidigital number, since it uses as much as digits as its factorization.

2066939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295284.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 2066939 is about 1437.6852924058. The cubic root of 2066939 is about 127.3823392291.

The spelling of 2066939 in words is "two million, sixty-six thousand, nine hundred thirty-nine".