5128647 has 8 divisors (see below), whose sum is σ = 6850944. Its totient is φ = 3412728.

The previous prime is 5128639. The next prime is 5128657. The reversal of 5128647 is 7468215.

5128647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5128647 - 2³ = 5128639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 3300.

It is an arithmetic number, because the mean of its divisors is an integer number (856368).

Almost surely, 2^5128647 is an apocalyptic number.

5128647 is a deficient number, since it is larger than the sum of its proper divisors (1722297).

5128647 is a wasteful number, since it uses less digits than its factorization.

5128647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189.

The product of its digits is 13440, while the sum is 33.

The square root of 5128647 is about 2264.6516288383. The cubic root of 5128647 is about 172.4517487394.

It can be divided in two parts, 5128 and 647, that added together give a palindrome (5775).

The spelling of 5128647 in words is "five million, one hundred twenty-eight thousand, six hundred forty-seven".