4093439 has 4 divisors (see below), whose sum is σ = 4678224. Its totient is φ = 3508656.

The previous prime is 4093433. The next prime is 4093451. The reversal of 4093439 is 9343904.

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

It is a cyclic number.

It is not a de Polignac number, because 4093439 - 2²⁰ = 3044863 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 (4093433) 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, 292382 + ... + 292395.

It is an arithmetic number, because the mean of its divisors is an integer number (1169556).

Almost surely, 2^4093439 is an apocalyptic number.

4093439 is a deficient number, since it is larger than the sum of its proper divisors (584785).

4093439 is an equidigital number, since it uses as much as digits as its factorization.

4093439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584784.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 4093439 is about 2023.2249009935. The cubic root of 4093439 is about 159.9666466935.

The spelling of 4093439 in words is "four million, ninety-three thousand, four hundred thirty-nine".