2021093 has 4 divisors (see below), whose sum is σ = 2024928. Its totient is φ = 2017260.

The previous prime is 2021083. The next prime is 2021099. The reversal of 2021093 is 3901202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021093 - 2⁴ = 2021077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021099) 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, 971 + ... + 2232.

It is an arithmetic number, because the mean of its divisors is an integer number (506232).

2^2021093 is an apocalyptic number.

It is an amenable number.

2021093 is a deficient number, since it is larger than the sum of its proper divisors (3835).

2021093 is an equidigital number, since it uses as much as digits as its factorization.

2021093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2021093 is about 1421.6515044131. The cubic root of 2021093 is about 126.4334821906.

Adding to 2021093 its reverse (3901202), we get a palindrome (5922295).

The spelling of 2021093 in words is "two million, twenty-one thousand, ninety-three".