2864887 has 2 divisors, whose sum is σ = 2864888. Its totient is φ = 2864886.

The previous prime is 2864879. The next prime is 2864909. The reversal of 2864887 is 7884682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2864887 - 2³ = 2864879 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2864867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432443 + 1432444.

It is an arithmetic number, because the mean of its divisors is an integer number (1432444).

2^2864887 is an apocalyptic number.

2864887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2864887 is an equidigital number, since it uses as much as digits as its factorization.

2864887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 43.

The square root of 2864887 is about 1692.5977076671. The cubic root of 2864887 is about 142.0264283284.

The spelling of 2864887 in words is "two million, eight hundred sixty-four thousand, eight hundred eighty-seven".