2868779 has 2 divisors, whose sum is σ = 2868780. Its totient is φ = 2868778.

The previous prime is 2868773. The next prime is 2868787. The reversal of 2868779 is 9778682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2868779 - 2¹² = 2864683 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2868773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434389 + 1434390.

It is an arithmetic number, because the mean of its divisors is an integer number (1434390).

2^2868779 is an apocalyptic number.

2868779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2868779 is an equidigital number, since it uses as much as digits as its factorization.

2868779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 47.

The square root of 2868779 is about 1693.7470295177. The cubic root of 2868779 is about 142.0907143698.

Subtracting 2868779 from its reverse (9778682), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2868779 in words is "two million, eight hundred sixty-eight thousand, seven hundred seventy-nine".