128708696 has 16 divisors (see below), whose sum is σ = 244384800. Its totient is φ = 63539424.

The previous prime is 128708693. The next prime is 128708711. The reversal of 128708696 is 696807821.

It is a self number, because there is not a number n which added to its sum of digits gives 128708696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128708693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101195 + ... + 102458.

It is an arithmetic number, because the mean of its divisors is an integer number (15274050).

Almost surely, 2^128708696 is an apocalyptic number.

It is an amenable number.

128708696 is a deficient number, since it is larger than the sum of its proper divisors (115676104).

128708696 is a wasteful number, since it uses less digits than its factorization.

128708696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203738 (or 203734 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 128708696 is about 11344.9855002111. The cubic root of 128708696 is about 504.8968138683.

The spelling of 128708696 in words is "one hundred twenty-eight million, seven hundred eight thousand, six hundred ninety-six".