2021793 has 16 divisors (see below), whose sum is σ = 2954880. Its totient is φ = 1223936.

The previous prime is 2021783. The next prime is 2021801. The reversal of 2021793 is 3971202.

It is a cyclic number.

It is not a de Polignac number, because 2021793 - 2⁴ = 2021777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2021743) 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, 796 + ... + 2162.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

2^2021793 is an apocalyptic number.

It is an amenable number.

2021793 is a deficient number, since it is larger than the sum of its proper divisors (933087).

2021793 is a wasteful number, since it uses less digits than its factorization.

2021793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2021793 is about 1421.8976756434. The cubic root of 2021793 is about 126.4480771353.

Adding to 2021793 its reverse (3971202), we get a palindrome (5992995).

The spelling of 2021793 in words is "two million, twenty-one thousand, seven hundred ninety-three".