2163933 has 6 divisors (see below), whose sum is σ = 3125694. Its totient is φ = 1442616.

The previous prime is 2163923. The next prime is 2163949. The reversal of 2163933 is 3393612.

2163933 is a `hidden beast` number, since 21 + 639 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1159929 + 1004004 = 1077^2 + 1002^2 .

It is not a de Polignac number, because 2163933 - 2⁶ = 2163869 is a prime.

It is a Curzon number.

2163933 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2163897 and 2163906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120210 + ... + 120227.

It is an arithmetic number, because the mean of its divisors is an integer number (520949).

2^2163933 is an apocalyptic number.

It is an amenable number.

2163933 is a deficient number, since it is larger than the sum of its proper divisors (961761).

2163933 is a wasteful number, since it uses less digits than its factorization.

2163933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240443 (or 240440 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 2163933 is about 1471.0312709117. The cubic root of 2163933 is about 129.3444911607.

The spelling of 2163933 in words is "two million, one hundred sixty-three thousand, nine hundred thirty-three".