2006779 has 2 divisors, whose sum is σ = 2006780. Its totient is φ = 2006778.

The previous prime is 2006707. The next prime is 2006783. The reversal of 2006779 is 9776002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2006779 - 2⁷ = 2006651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2006779.

It is not a weakly prime, because it can be changed into another prime (2006579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003389 + 1003390.

It is an arithmetic number, because the mean of its divisors is an integer number (1003390).

2^2006779 is an apocalyptic number.

2006779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006779 is an equidigital number, since it uses as much as digits as its factorization.

2006779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 2006779 is about 1416.6082733064. The cubic root of 2006779 is about 126.1342945397.

The spelling of 2006779 in words is "two million, six thousand, seven hundred seventy-nine".