2028779 has 2 divisors, whose sum is σ = 2028780. Its totient is φ = 2028778.

The previous prime is 2028773. The next prime is 2028781. The reversal of 2028779 is 9778202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2028779 - 2¹⁶ = 1963243 is a prime.

Together with 2028781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2028773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014389 + 1014390.

It is an arithmetic number, because the mean of its divisors is an integer number (1014390).

2^2028779 is an apocalyptic number.

2028779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028779 is an equidigital number, since it uses as much as digits as its factorization.

2028779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2028779 is about 1424.3521334277. The cubic root of 2028779 is about 126.5935504469.

The spelling of 2028779 in words is "two million, twenty-eight thousand, seven hundred seventy-nine".