129704 has 16 divisors (see below), whose sum is σ = 251520. Its totient is φ = 62640.

The previous prime is 129671. The next prime is 129707. The reversal of 129704 is 407921.

It is a self number, because there is not a number n which added to its sum of digits gives 129704.

It is not an unprimeable number, because it can be changed into a prime (129707) 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, 14 + ... + 509.

It is an arithmetic number, because the mean of its divisors is an integer number (15720).

2¹²⁹⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

129704 is a deficient number, since it is larger than the sum of its proper divisors (121816).

129704 is a wasteful number, since it uses less digits than its factorization.

129704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 129704 is about 360.1444154780. The cubic root of 129704 is about 50.6194928725.

The spelling of 129704 in words is "one hundred twenty-nine thousand, seven hundred four".