2021373 has 12 divisors (see below), whose sum is σ = 2957760. Its totient is φ = 1330056.

The previous prime is 2021339. The next prime is 2021377. The reversal of 2021373 is 3731202.

It is not a de Polignac number, because 2021373 - 2⁹ = 2020861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 711 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (246480).

2^2021373 is an apocalyptic number.

It is an amenable number.

2021373 is a deficient number, since it is larger than the sum of its proper divisors (936387).

2021373 is a wasteful number, since it uses less digits than its factorization.

2021373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928 (or 2925 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 2021373 is about 1421.7499780200. The cubic root of 2021373 is about 126.4393205728.

Adding to 2021373 its reverse (3731202), we get a palindrome (5752575).

The spelling of 2021373 in words is "two million, twenty-one thousand, three hundred seventy-three".