129708888 has 16 divisors (see below), whose sum is σ = 324272280. Its totient is φ = 43236288.

The previous prime is 129708883. The next prime is 129708893. The reversal of 129708888 is 888807921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (129708883) and next prime (129708893).

It is a self number, because there is not a number n which added to its sum of digits gives 129708888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129708881) 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, 2702245 + ... + 2702292.

Almost surely, 2^129708888 is an apocalyptic number.

It is an amenable number.

129708888 is an abundant number, since it is smaller than the sum of its proper divisors (194563392).

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

129708888 is a wasteful number, since it uses less digits than its factorization.

129708888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404546 (or 5404542 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 51.

The square root of 129708888 is about 11388.9809904135. The cubic root of 129708888 is about 506.2012874330.

The spelling of 129708888 in words is "one hundred twenty-nine million, seven hundred eight thousand, eight hundred eighty-eight".