2122839 has 6 divisors (see below), whose sum is σ = 3066336. Its totient is φ = 1415220.

The previous prime is 2122837. The next prime is 2122843. The reversal of 2122839 is 9382212.

It is a happy number.

It is not a de Polignac number, because 2122839 - 2¹ = 2122837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117927 + ... + 117944.

It is an arithmetic number, because the mean of its divisors is an integer number (511056).

2^2122839 is an apocalyptic number.

2122839 is a deficient number, since it is larger than the sum of its proper divisors (943497).

2122839 is a wasteful number, since it uses less digits than its factorization.

2122839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235877 (or 235874 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2122839 is about 1456.9965682870. The cubic root of 2122839 is about 128.5204840495.

The spelling of 2122839 in words is "two million, one hundred twenty-two thousand, eight hundred thirty-nine".