4089887 has 2 divisors, whose sum is σ = 4089888. Its totient is φ = 4089886.

The previous prime is 4089871. The next prime is 4089889. The reversal of 4089887 is 7889804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4089887 - 2⁴ = 4089871 is a prime.

Together with 4089889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4089889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2044943 + 2044944.

It is an arithmetic number, because the mean of its divisors is an integer number (2044944).

Almost surely, 2^4089887 is an apocalyptic number.

4089887 is a deficient number, since it is larger than the sum of its proper divisors (1).

4089887 is an equidigital number, since it uses as much as digits as its factorization.

4089887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 4089887 is about 2022.3469039707. The cubic root of 4089887 is about 159.9203640156.

The spelling of 4089887 in words is "four million, eighty-nine thousand, eight hundred eighty-seven".