4089239 has 16 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 3046560.

The previous prime is 4089227. The next prime is 4089259. The reversal of 4089239 is 9329804.

It is not a de Polignac number, because 4089239 - 2¹⁶ = 4023703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4089199 and 4089208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617 + ... + 2925.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

Almost surely, 2^4089239 is an apocalyptic number.

4089239 is a deficient number, since it is larger than the sum of its proper divisors (1233001).

4089239 is a wasteful number, since it uses less digits than its factorization.

4089239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350.

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

The square root of 4089239 is about 2022.1866877220. The cubic root of 4089239 is about 159.9119176641.

The spelling of 4089239 in words is "four million, eighty-nine thousand, two hundred thirty-nine".