2389839 has 8 divisors (see below), whose sum is σ = 3354240. Its totient is φ = 1509336.

The previous prime is 2389831. The next prime is 2389841. The reversal of 2389839 is 9389832.

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

It is not a de Polignac number, because 2389839 - 2³ = 2389831 is a prime.

It is a super-2 number, since 2×2389839² = 11422660891842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2389839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389831) 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, 20907 + ... + 21020.

It is an arithmetic number, because the mean of its divisors is an integer number (419280).

2^2389839 is an apocalyptic number.

2389839 is a deficient number, since it is larger than the sum of its proper divisors (964401).

2389839 is a wasteful number, since it uses less digits than its factorization.

2389839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41949.

The product of its digits is 93312, while the sum is 42.

The square root of 2389839 is about 1545.9104113758. The cubic root of 2389839 is about 133.6973752852.

The spelling of 2389839 in words is "two million, three hundred eighty-nine thousand, eight hundred thirty-nine".