2066823 has 16 divisors (see below), whose sum is σ = 3340800. Its totient is φ = 1252440.

The previous prime is 2066797. The next prime is 2066833. The reversal of 2066823 is 3286602.

It is not a de Polignac number, because 2066823 - 2⁶ = 2066759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

2066823 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3183 + ... + 3776.

It is an arithmetic number, because the mean of its divisors is an integer number (208800).

2^2066823 is an apocalyptic number.

2066823 is a deficient number, since it is larger than the sum of its proper divisors (1273977).

2066823 is a wasteful number, since it uses less digits than its factorization.

2066823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979 (or 6973 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2066823 is about 1437.6449492138. The cubic root of 2066823 is about 127.3799562160.

The spelling of 2066823 in words is "two million, sixty-six thousand, eight hundred twenty-three".