2020791 has 8 divisors (see below), whose sum is σ = 2705904. Its totient is φ = 1341440.

The previous prime is 2020789. The next prime is 2020793. The reversal of 2020791 is 1970202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2020789) and next prime (2020793).

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

It is a cyclic number.

It is not a de Polignac number, because 2020791 - 2¹ = 2020789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020793) 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, 540 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (338238).

2^2020791 is an apocalyptic number.

2020791 is a deficient number, since it is larger than the sum of its proper divisors (685113).

2020791 is a wasteful number, since it uses less digits than its factorization.

2020791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 2020791 is about 1421.5452859477. The cubic root of 2020791 is about 126.4271844738.

Adding to 2020791 its reverse (1970202), we get a palindrome (3990993).

The spelling of 2020791 in words is "two million, twenty thousand, seven hundred ninety-one".