129627982 has 16 divisors (see below), whose sum is σ = 215286912. Its totient is φ = 58041720.

The previous prime is 129627961. The next prime is 129627997. The reversal of 129627982 is 289726921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42498 + ... + 45445.

It is an arithmetic number, because the mean of its divisors is an integer number (13455432).

Almost surely, 2^129627982 is an apocalyptic number.

129627982 is a deficient number, since it is larger than the sum of its proper divisors (85658930).

129627982 is a wasteful number, since it uses less digits than its factorization.

129627982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88023.

The product of its digits is 217728, while the sum is 46.

The square root of 129627982 is about 11385.4284943519. The cubic root of 129627982 is about 506.0960177528.

The spelling of 129627982 in words is "one hundred twenty-nine million, six hundred twenty-seven thousand, nine hundred eighty-two".