9128643 has 12 divisors (see below), whose sum is σ = 12930840. Its totient is φ = 5727232.

The previous prime is 9128629. The next prime is 9128653. The reversal of 9128643 is 3468219.

9128643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9128643 - 2⁶ = 9128579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9128653) 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 11 ways as a sum of consecutive naturals, for example, 4398 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (1077570).

Almost surely, 2^9128643 is an apocalyptic number.

9128643 is a deficient number, since it is larger than the sum of its proper divisors (3802197).

9128643 is a wasteful number, since it uses less digits than its factorization.

9128643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10566 (or 10549 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 9128643 is about 3021.3644268774. The cubic root of 9128643 is about 208.9947649460.

The spelling of 9128643 in words is "nine million, one hundred twenty-eight thousand, six hundred forty-three".