2868787 has 2 divisors, whose sum is σ = 2868788. Its totient is φ = 2868786.

The previous prime is 2868779. The next prime is 2868793. The reversal of 2868787 is 7878682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2868787 - 2³ = 2868779 is a prime.

It is not a weakly prime, because it can be changed into another prime (2868707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434393 + 1434394.

It is an arithmetic number, because the mean of its divisors is an integer number (1434394).

2^2868787 is an apocalyptic number.

2868787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2868787 is an equidigital number, since it uses as much as digits as its factorization.

2868787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 46.

The square root of 2868787 is about 1693.7493911438. The cubic root of 2868787 is about 142.0908464498.

It can be divided in two parts, 2868 and 787, that added together give a triangular number (3655 = T₈₅).

The spelling of 2868787 in words is "two million, eight hundred sixty-eight thousand, seven hundred eighty-seven".