2859779 has 4 divisors (see below), whose sum is σ = 3079776. Its totient is φ = 2639784.

The previous prime is 2859763. The next prime is 2859793. The reversal of 2859779 is 9779582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2859779 - 2⁴ = 2859763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2859749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109979 + ... + 110004.

It is an arithmetic number, because the mean of its divisors is an integer number (769944).

2^2859779 is an apocalyptic number.

2859779 is a deficient number, since it is larger than the sum of its proper divisors (219997).

2859779 is a wasteful number, since it uses less digits than its factorization.

2859779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219996.

The product of its digits is 317520, while the sum is 47.

The square root of 2859779 is about 1691.0881112467. The cubic root of 2859779 is about 141.9419686170.

The spelling of 2859779 in words is "two million, eight hundred fifty-nine thousand, seven hundred seventy-nine".