2239887 has 16 divisors (see below), whose sum is σ = 3261440. Its totient is φ = 1359072.

The previous prime is 2239883. The next prime is 2239889. The reversal of 2239887 is 7889322.

2239887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2239887 - 2² = 2239883 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 3⁷ + 9⁴ + 8³ + 8⁷ + 7⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2718 + ... + 3444.

It is an arithmetic number, because the mean of its divisors is an integer number (203840).

2^2239887 is an apocalyptic number.

2239887 is a deficient number, since it is larger than the sum of its proper divisors (1021553).

2239887 is a wasteful number, since it uses less digits than its factorization.

2239887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822.

The product of its digits is 48384, while the sum is 39.

The square root of 2239887 is about 1496.6252035830. The cubic root of 2239887 is about 130.8404521890.

The spelling of 2239887 in words is "two million, two hundred thirty-nine thousand, eight hundred eighty-seven".