128696 has 8 divisors (see below), whose sum is σ = 241320. Its totient is φ = 64344.

The previous prime is 128693. The next prime is 128717. The reversal of 128696 is 696821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 128696.

It is not an unprimeable number, because it can be changed into a prime (128693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8036 + ... + 8051.

It is an arithmetic number, because the mean of its divisors is an integer number (30165).

2¹²⁸⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

128696 is a deficient number, since it is larger than the sum of its proper divisors (112624).

128696 is a wasteful number, since it uses less digits than its factorization.

128696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16093 (or 16089 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 128696 is about 358.7422473030. The cubic root of 128696 is about 50.4880212087.

The spelling of 128696 in words is "one hundred twenty-eight thousand, six hundred ninety-six".