3447439 has 4 divisors (see below), whose sum is σ = 3527656. Its totient is φ = 3367224.

The previous prime is 3447419. The next prime is 3447443. The reversal of 3447439 is 9347443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9347443 = 7 ⋅1335349.

It is a cyclic number.

It is not a de Polignac number, because 3447439 - 2⁵ = 3447407 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 (3447419) 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, 40044 + ... + 40129.

It is an arithmetic number, because the mean of its divisors is an integer number (881914).

Almost surely, 2^3447439 is an apocalyptic number.

3447439 is a deficient number, since it is larger than the sum of its proper divisors (80217).

3447439 is an equidigital number, since it uses as much as digits as its factorization.

3447439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80216.

The product of its digits is 36288, while the sum is 34.

The square root of 3447439 is about 1856.7280360893. The cubic root of 3447439 is about 151.0655826693.

The spelling of 3447439 in words is "three million, four hundred forty-seven thousand, four hundred thirty-nine".