3128047 has 8 divisors (see below), whose sum is σ = 3417120. Its totient is φ = 2845920.

The previous prime is 3128039. The next prime is 3128053. The reversal of 3128047 is 7408213.

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 3128047 - 2³ = 3128039 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 (3128057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772 + ... + 2617.

It is an arithmetic number, because the mean of its divisors is an integer number (427140).

Almost surely, 2^3128047 is an apocalyptic number.

3128047 is a deficient number, since it is larger than the sum of its proper divisors (289073).

3128047 is a wasteful number, since it uses less digits than its factorization.

3128047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3128047 is about 1768.6285647360. The cubic root of 3128047 is about 146.2483887129.

The spelling of 3128047 in words is "three million, one hundred twenty-eight thousand, forty-seven".