2020811 has 8 divisors (see below), whose sum is σ = 2187360. Its totient is φ = 1855872.

The previous prime is 2020793. The next prime is 2020817. The reversal of 2020811 is 1180202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020811 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 (2020817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4451 + ... + 4883.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

2^2020811 is an apocalyptic number.

2020811 is a deficient number, since it is larger than the sum of its proper divisors (166549).

2020811 is a wasteful number, since it uses less digits than its factorization.

2020811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2020811 is about 1421.5523205285. The cubic root of 2020811 is about 126.4276015606.

The spelling of 2020811 in words is "two million, twenty thousand, eight hundred eleven".