128079893 has 12 divisors (see below), whose sum is σ = 140948640. Its totient is φ = 116054136.

The previous prime is 128079871. The next prime is 128079899. The reversal of 128079893 is 398970821.

It is not a de Polignac number, because 128079893 - 2¹⁰ = 128078869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128079899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3680 + ... + 16422.

It is an arithmetic number, because the mean of its divisors is an integer number (11745720).

Almost surely, 2^128079893 is an apocalyptic number.

It is an amenable number.

128079893 is a deficient number, since it is larger than the sum of its proper divisors (12868747).

128079893 is a wasteful number, since it uses less digits than its factorization.

128079893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808 (or 12785 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 128079893 is about 11317.2387533356. The cubic root of 128079893 is about 504.0732511425.

The spelling of 128079893 in words is "one hundred twenty-eight million, seventy-nine thousand, eight hundred ninety-three".