2128847 has 8 divisors (see below), whose sum is σ = 2448000. Its totient is φ = 1813464.

The previous prime is 2128837. The next prime is 2128849. The reversal of 2128847 is 7488212.

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 2128847 - 2⁴ = 2128831 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 (2128849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404 + ... + 2102.

It is an arithmetic number, because the mean of its divisors is an integer number (306000).

2^2128847 is an apocalyptic number.

2128847 is a deficient number, since it is larger than the sum of its proper divisors (319153).

2128847 is a wasteful number, since it uses less digits than its factorization.

2128847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885.

The product of its digits is 7168, while the sum is 32.

The square root of 2128847 is about 1459.0568871706. The cubic root of 2128847 is about 128.6416148828.

The spelling of 2128847 in words is "two million, one hundred twenty-eight thousand, eight hundred forty-seven".