2785879 has 2 divisors, whose sum is σ = 2785880. Its totient is φ = 2785878.

The previous prime is 2785873. The next prime is 2785891. The reversal of 2785879 is 9785872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2785879 - 2⁵ = 2785847 is a prime.

It is a super-2 number, since 2×2785879² = 15522243605282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2785873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392939 + 1392940.

It is an arithmetic number, because the mean of its divisors is an integer number (1392940).

2^2785879 is an apocalyptic number.

2785879 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785879 is an equidigital number, since it uses as much as digits as its factorization.

2785879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 46.

The square root of 2785879 is about 1669.0952639080. The cubic root of 2785879 is about 140.7086349571.

The spelling of 2785879 in words is "two million, seven hundred eighty-five thousand, eight hundred seventy-nine".