2020217 has 4 divisors (see below), whose sum is σ = 2023680. Its totient is φ = 2016756.

The previous prime is 2020181. The next prime is 2020223. The reversal of 2020217 is 7120202.

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 2020217 - 2⁶ = 2020153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020247) 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, 617 + ... + 2102.

It is an arithmetic number, because the mean of its divisors is an integer number (505920).

2^2020217 is an apocalyptic number.

It is an amenable number.

2020217 is a deficient number, since it is larger than the sum of its proper divisors (3463).

2020217 is an equidigital number, since it uses as much as digits as its factorization.

2020217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 2020217 is about 1421.3433786387. The cubic root of 2020217 is about 126.4152129115.

Adding to 2020217 its reverse (7120202), we get a palindrome (9140419).

The spelling of 2020217 in words is "two million, twenty thousand, two hundred seventeen".