3128413 has 4 divisors (see below), whose sum is σ = 3132000. Its totient is φ = 3124828.

The previous prime is 3128401. The next prime is 3128443. The reversal of 3128413 is 3148213.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3148213 = 17 ⋅185189.

It is a cyclic number.

It is not a de Polignac number, because 3128413 - 2⁵ = 3128381 is a prime.

It is a Duffinian number.

3128413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128443) 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, 456 + ... + 2542.

It is an arithmetic number, because the mean of its divisors is an integer number (783000).

Almost surely, 2^3128413 is an apocalyptic number.

It is an amenable number.

3128413 is a deficient number, since it is larger than the sum of its proper divisors (3587).

3128413 is a wasteful number, since it uses less digits than its factorization.

3128413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586.

The product of its digits is 576, while the sum is 22.

The square root of 3128413 is about 1768.7320317109. The cubic root of 3128413 is about 146.2540924659.

The spelling of 3128413 in words is "three million, one hundred twenty-eight thousand, four hundred thirteen".