128708 has 12 divisors (see below), whose sum is σ = 235200. Its totient is φ = 61512.

The previous prime is 128693. The next prime is 128717. The reversal of 128708 is 807821.

It is a super-3 number, since 3×128708³ = 6396433368812736, which contains 333 as substring.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608 + ... + 791.

It is an arithmetic number, because the mean of its divisors is an integer number (19600).

2¹²⁸⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

128708 is a deficient number, since it is larger than the sum of its proper divisors (106492).

128708 is a wasteful number, since it uses less digits than its factorization.

128708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 128708 is about 358.7589720132. The cubic root of 128708 is about 50.4895903780.

The spelling of 128708 in words is "one hundred twenty-eight thousand, seven hundred eight".