2065779 has 12 divisors (see below), whose sum is σ = 3018600. Its totient is φ = 1361184.

The previous prime is 2065769. The next prime is 2065799. The reversal of 2065779 is 9775602.

It is not a de Polignac number, because 2065779 - 2⁸ = 2065523 is a prime.

2065779 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2065729) 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 11 ways as a sum of consecutive naturals, for example, 489 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (251550).

2^2065779 is an apocalyptic number.

2065779 is a deficient number, since it is larger than the sum of its proper divisors (952821).

2065779 is a wasteful number, since it uses less digits than its factorization.

2065779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674 (or 2671 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 2065779 is about 1437.2818095280. The cubic root of 2065779 is about 127.3585050852.

It can be divided in two parts, 20657 and 79, that added together give a 4-th power (20736 = 12⁴).

The spelling of 2065779 in words is "two million, sixty-five thousand, seven hundred seventy-nine".