2287839 has 8 divisors (see below), whose sum is σ = 3155760. Its totient is φ = 1472576.

The previous prime is 2287823. The next prime is 2287861. The reversal of 2287839 is 9387822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2287839 - 2⁴ = 2287823 is a prime.

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 8³ + 7² + 8⁷ + 3 + 9⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2287797 and 2287806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287039) 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 7 ways as a sum of consecutive naturals, for example, 13062 + ... + 13235.

It is an arithmetic number, because the mean of its divisors is an integer number (394470).

2^2287839 is an apocalyptic number.

2287839 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2287839 is a deficient number, since it is larger than the sum of its proper divisors (867921).

2287839 is a wasteful number, since it uses less digits than its factorization.

2287839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26329.

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

The square root of 2287839 is about 1512.5604120167. The cubic root of 2287839 is about 131.7675546439.

The spelling of 2287839 in words is "two million, two hundred eighty-seven thousand, eight hundred thirty-nine".