129708 has 24 divisors (see below), whose sum is σ = 336560. Its totient is φ = 43200.

The previous prime is 129707. The next prime is 129719. The reversal of 129708 is 807921.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 129708.

It is not an unprimeable number, because it can be changed into a prime (129707) 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 in 7 ways as a sum of consecutive naturals, for example, 493 + ... + 708.

2¹²⁹⁷⁰⁸ is an apocalyptic number.

129708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

129708 is an abundant number, since it is smaller than the sum of its proper divisors (206852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129708 is a wasteful number, since it uses less digits than its factorization.

129708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 129708 is about 360.1499687630. The cubic root of 129708 is about 50.6200132262.

The spelling of 129708 in words is "one hundred twenty-nine thousand, seven hundred eight".