129672084 has 24 divisors (see below), whose sum is σ = 302793120. Its totient is φ = 43191904.

The previous prime is 129672083. The next prime is 129672113. The reversal of 129672084 is 480276921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129672083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17347 + ... + 23669.

It is an arithmetic number, because the mean of its divisors is an integer number (12616380).

Almost surely, 2^129672084 is an apocalyptic number.

It is an amenable number.

129672084 is an abundant number, since it is smaller than the sum of its proper divisors (173121036).

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

129672084 is a wasteful number, since it uses less digits than its factorization.

129672084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8039 (or 8037 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 129672084 is about 11387.3651034820. The cubic root of 129672084 is about 506.1534058658.

It can be divided in two parts, 12967 and 2084, that added together give a palindrome (15051).

The spelling of 129672084 in words is "one hundred twenty-nine million, six hundred seventy-two thousand, eighty-four".