2987859 has 16 divisors (see below), whose sum is σ = 4613120. Its totient is φ = 1684800.

The previous prime is 2987857. The next prime is 2987863. The reversal of 2987859 is 9587892.

It is a happy number.

It is not a de Polignac number, because 2987859 - 2¹ = 2987857 is a prime.

It is a Duffinian number.

Its product of digits (362880) is a multiple of the sum of its prime divisors (1890).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987857) 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 in 15 ways as a sum of consecutive naturals, for example, 759 + ... + 2559.

It is an arithmetic number, because the mean of its divisors is an integer number (288320).

2^2987859 is an apocalyptic number.

2987859 is a deficient number, since it is larger than the sum of its proper divisors (1625261).

2987859 is a wasteful number, since it uses less digits than its factorization.

2987859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890.

The product of its digits is 362880, while the sum is 48.

The square root of 2987859 is about 1728.5424495800. The cubic root of 2987859 is about 144.0301345113.

The spelling of 2987859 in words is "two million, nine hundred eighty-seven thousand, eight hundred fifty-nine".