3447239 has 8 divisors (see below), whose sum is σ = 3577392. Its totient is φ = 3319360.

The previous prime is 3447233. The next prime is 3447247. The reversal of 3447239 is 9327443.

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

It is a de Polignac number, because none of the positive numbers 2^k-3447239 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 (3447233) 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, 2897 + ... + 3909.

It is an arithmetic number, because the mean of its divisors is an integer number (447174).

Almost surely, 2^3447239 is an apocalyptic number.

3447239 is a deficient number, since it is larger than the sum of its proper divisors (130153).

3447239 is a wasteful number, since it uses less digits than its factorization.

3447239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137.

The product of its digits is 18144, while the sum is 32.

The square root of 3447239 is about 1856.6741771242. The cubic root of 3447239 is about 151.0626613025.

The spelling of 3447239 in words is "three million, four hundred forty-seven thousand, two hundred thirty-nine".