2783579 has 2 divisors, whose sum is σ = 2783580. Its totient is φ = 2783578.

The previous prime is 2783549. The next prime is 2783581. The reversal of 2783579 is 9753872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2783579 - 2⁸ = 2783323 is a prime.

Together with 2783581, 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 (2783549) 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 as a sum of consecutive naturals, namely, 1391789 + 1391790.

It is an arithmetic number, because the mean of its divisors is an integer number (1391790).

2^2783579 is an apocalyptic number.

2783579 is a deficient number, since it is larger than the sum of its proper divisors (1).

2783579 is an equidigital number, since it uses as much as digits as its factorization.

2783579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 2783579 is about 1668.4061256181. The cubic root of 2783579 is about 140.6699016449.

Adding to 2783579 its sum of digits (41), we get a triangular number (2783620 = T₂₃₅₉).

The spelling of 2783579 in words is "two million, seven hundred eighty-three thousand, five hundred seventy-nine".