128848389 has 16 divisors (see below), whose sum is σ = 184991040. Its totient is φ = 79473920.

The previous prime is 128848373. The next prime is 128848397. The reversal of 128848389 is 983848821.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 128848389 - 2⁴ = 128848373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128848399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18402 + ... + 24419.

It is an arithmetic number, because the mean of its divisors is an integer number (11561940).

Almost surely, 2^128848389 is an apocalyptic number.

It is an amenable number.

128848389 is a deficient number, since it is larger than the sum of its proper divisors (56142651).

128848389 is a wasteful number, since it uses less digits than its factorization.

128848389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42900.

The product of its digits is 884736, while the sum is 51.

The square root of 128848389 is about 11351.1404272875. The cubic root of 128848389 is about 505.0794097912.

The spelling of 128848389 in words is "one hundred twenty-eight million, eight hundred forty-eight thousand, three hundred eighty-nine".