2887987 has 2 divisors, whose sum is σ = 2887988. Its totient is φ = 2887986.

The previous prime is 2887979. The next prime is 2887993. The reversal of 2887987 is 7897882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2887987 - 2³ = 2887979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2887987.

It is not a weakly prime, because it can be changed into another prime (2827987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443993 + 1443994.

It is an arithmetic number, because the mean of its divisors is an integer number (1443994).

2^2887987 is an apocalyptic number.

2887987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2887987 is an equidigital number, since it uses as much as digits as its factorization.

2887987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 49.

The square root of 2887987 is about 1699.4078380424. The cubic root of 2887987 is about 142.4071335010.

The spelling of 2887987 in words is "two million, eight hundred eighty-seven thousand, nine hundred eighty-seven".