129790 has 8 divisors (see below), whose sum is σ = 233640. Its totient is φ = 51912.

The previous prime is 129769. The next prime is 129793. The reversal of 129790 is 97921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129793) 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, 6480 + ... + 6499.

It is an arithmetic number, because the mean of its divisors is an integer number (29205).

2¹²⁹⁷⁹⁰ is an apocalyptic number.

129790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129790 is a deficient number, since it is larger than the sum of its proper divisors (103850).

129790 is a wasteful number, since it uses less digits than its factorization.

129790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12986.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 129790 is about 360.2637922412. The cubic root of 129790 is about 50.6306781214.

It can be divided in two parts, 129 and 790, that added together give a palindrome (919).

The spelling of 129790 in words is "one hundred twenty-nine thousand, seven hundred ninety".