128848993 has 16 divisors (see below), whose sum is σ = 159846400. Its totient is φ = 101134656.

The previous prime is 128848987. The next prime is 128848997. The reversal of 128848993 is 399848821.

It is not a de Polignac number, because 128848993 - 2⁵ = 128848961 is a prime.

It is a super-2 number, since 2×128848993² = 33204125994228098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128848993.

It is not an unprimeable number, because it can be changed into a prime (128848997) 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 15 ways as a sum of consecutive naturals, for example, 5983 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (9990400).

Almost surely, 2^128848993 is an apocalyptic number.

128848993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

128848993 is a deficient number, since it is larger than the sum of its proper divisors (30997407).

128848993 is a wasteful number, since it uses less digits than its factorization.

128848993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11296.

The product of its digits is 995328, while the sum is 52.

The square root of 128848993 is about 11351.1670325126. The cubic root of 128848993 is about 505.0801990069.

The spelling of 128848993 in words is "one hundred twenty-eight million, eight hundred forty-eight thousand, nine hundred ninety-three".