129327672 has 32 divisors (see below), whose sum is σ = 326526480. Its totient is φ = 42681600.

The previous prime is 129327659. The next prime is 129327719. The reversal of 129327672 is 276723921.

It is a self number, because there is not a number n which added to its sum of digits gives 129327672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24253 + ... + 29100.

Almost surely, 2^129327672 is an apocalyptic number.

129327672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129327672 is an abundant number, since it is smaller than the sum of its proper divisors (197198808).

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

129327672 is a wasteful number, since it uses less digits than its factorization.

129327672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53463 (or 53459 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 129327672 is about 11372.2324985027. The cubic root of 129327672 is about 505.7048902282.

The spelling of 129327672 in words is "one hundred twenty-nine million, three hundred twenty-seven thousand, six hundred seventy-two".