4047239 has 8 divisors (see below), whose sum is σ = 4713120. Its totient is φ = 3403296.

The previous prime is 4047157. The next prime is 4047257. The reversal of 4047239 is 9327404.

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

It is a cyclic number.

It is not a de Polignac number, because 4047239 - 2²⁰ = 2998663 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 (4047299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5084 + ... + 5825.

It is an arithmetic number, because the mean of its divisors is an integer number (589140).

Almost surely, 2^4047239 is an apocalyptic number.

4047239 is a deficient number, since it is larger than the sum of its proper divisors (665881).

4047239 is a wasteful number, since it uses less digits than its factorization.

4047239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10969.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 4047239 is about 2011.7750868325. The cubic root of 4047239 is about 159.3625549170.

The spelling of 4047239 in words is "four million, forty-seven thousand, two hundred thirty-nine".