2089439 has 4 divisors (see below), whose sum is σ = 2279400. Its totient is φ = 1899480.

The previous prime is 2089403. The next prime is 2089441. The reversal of 2089439 is 9349802.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-2089439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2089399 and 2089408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94964 + ... + 94985.

It is an arithmetic number, because the mean of its divisors is an integer number (569850).

2^2089439 is an apocalyptic number.

2089439 is a deficient number, since it is larger than the sum of its proper divisors (189961).

2089439 is a wasteful number, since it uses less digits than its factorization.

2089439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189960.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2089439 is about 1445.4891905511. The cubic root of 2089439 is about 127.8428858417.

The spelling of 2089439 in words is "two million, eighty-nine thousand, four hundred thirty-nine".