3439421 has 4 divisors (see below), whose sum is σ = 3450144. Its totient is φ = 3428700.

The previous prime is 3439417. The next prime is 3439427. The reversal of 3439421 is 1249343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3439421 - 2² = 3439417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3439427) 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, 4865 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (862536).

Almost surely, 2^3439421 is an apocalyptic number.

It is an amenable number.

3439421 is a deficient number, since it is larger than the sum of its proper divisors (10723).

3439421 is a wasteful number, since it uses less digits than its factorization.

3439421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10722.

The product of its digits is 2592, while the sum is 26.

The square root of 3439421 is about 1854.5676045914. The cubic root of 3439421 is about 150.9483764293.

The spelling of 3439421 in words is "three million, four hundred thirty-nine thousand, four hundred twenty-one".