2020786 has 8 divisors (see below), whose sum is σ = 3072924. Its totient is φ = 996480.

The previous prime is 2020771. The next prime is 2020789. The reversal of 2020786 is 6870202.

It can be written as a sum of positive squares in 2 ways, for example, as 2013561 + 7225 = 1419^2 + 85^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2020786.

It is not an unprimeable number, because it can be changed into a prime (2020789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6775 + ... + 7066.

2^2020786 is an apocalyptic number.

2020786 is a deficient number, since it is larger than the sum of its proper divisors (1052138).

2020786 is a wasteful number, since it uses less digits than its factorization.

2020786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13916.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2020786 is about 1421.5435272970. The cubic root of 2020786 is about 126.4270802017.

Adding to 2020786 its reverse (6870202), we get a palindrome (8890988).

The spelling of 2020786 in words is "two million, twenty thousand, seven hundred eighty-six".