128872883 has 4 divisors (see below), whose sum is σ = 128919840. Its totient is φ = 128825928.

The previous prime is 128872873. The next prime is 128872889. The reversal of 128872883 is 388278821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128872883 - 2⁴ = 128872867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128872889) 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 3 ways as a sum of consecutive naturals, for example, 19088 + ... + 24941.

It is an arithmetic number, because the mean of its divisors is an integer number (32229960).

Almost surely, 2^128872883 is an apocalyptic number.

128872883 is a deficient number, since it is larger than the sum of its proper divisors (46957).

128872883 is an equidigital number, since it uses as much as digits as its factorization.

128872883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46956.

The product of its digits is 344064, while the sum is 47.

The square root of 128872883 is about 11352.2192984456. The cubic root of 128872883 is about 505.1114128591. Note that the first 3 decimals are identical.

The spelling of 128872883 in words is "one hundred twenty-eight million, eight hundred seventy-two thousand, eight hundred eighty-three".