2020847 has 4 divisors (see below), whose sum is σ = 2028576. Its totient is φ = 2013120.

The previous prime is 2020831. The next prime is 2020853. The reversal of 2020847 is 7480202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2020847 - 2⁴ = 2020831 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 3 ways as a sum of consecutive naturals, for example, 3458 + ... + 3999.

It is an arithmetic number, because the mean of its divisors is an integer number (507144).

2^2020847 is an apocalyptic number.

2020847 is a deficient number, since it is larger than the sum of its proper divisors (7729).

2020847 is an equidigital number, since it uses as much as digits as its factorization.

2020847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2020847 is about 1421.5649826863. The cubic root of 2020847 is about 126.4283523097.

The spelling of 2020847 in words is "two million, twenty thousand, eight hundred forty-seven".