128833893 has 24 divisors (see below), whose sum is σ = 188697600. Its totient is φ = 84697440.

The previous prime is 128833877. The next prime is 128833897. The reversal of 128833893 is 398338821.

It is not a de Polignac number, because 128833893 - 2⁴ = 128833877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128833897) 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 23 ways as a sum of consecutive naturals, for example, 255880 + ... + 256382.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2^128833893 is an apocalyptic number.

It is an amenable number.

128833893 is a deficient number, since it is larger than the sum of its proper divisors (59863707).

128833893 is a wasteful number, since it uses less digits than its factorization.

128833893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 846 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 128833893 is about 11350.5018831768. The cubic root of 128833893 is about 505.0604678762.

The spelling of 128833893 in words is "one hundred twenty-eight million, eight hundred thirty-three thousand, eight hundred ninety-three".