2143839 has 8 divisors (see below), whose sum is σ = 2865280. Its totient is φ = 1425816.

The previous prime is 2143837. The next prime is 2143847. The reversal of 2143839 is 9383412.

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

It is not a de Polignac number, because 2143839 - 2¹ = 2143837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734 + ... + 2700.

It is an arithmetic number, because the mean of its divisors is an integer number (358160).

2^2143839 is an apocalyptic number.

2143839 is a deficient number, since it is larger than the sum of its proper divisors (721441).

2143839 is an equidigital number, since it uses as much as digits as its factorization.

2143839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709.

The product of its digits is 5184, while the sum is 30.

The square root of 2143839 is about 1464.1854390753. The cubic root of 2143839 is about 128.9428868022.

The spelling of 2143839 in words is "two million, one hundred forty-three thousand, eight hundred thirty-nine".