3428391 has 8 divisors (see below), whose sum is σ = 4595184. Its totient is φ = 2273600.

The previous prime is 3428389. The next prime is 3428413. The reversal of 3428391 is 1938243.

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 3428391 - 2¹ = 3428389 is a prime.

It is a super-3 number, since 3×3428391³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428371) 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, 2310 + ... + 3491.

It is an arithmetic number, because the mean of its divisors is an integer number (574398).

Almost surely, 2^3428391 is an apocalyptic number.

3428391 is a deficient number, since it is larger than the sum of its proper divisors (1166793).

3428391 is a wasteful number, since it uses less digits than its factorization.

3428391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001.

The product of its digits is 5184, while the sum is 30.

The square root of 3428391 is about 1851.5914776213. The cubic root of 3428391 is about 150.7868430805.

The spelling of 3428391 in words is "three million, four hundred twenty-eight thousand, three hundred ninety-one".