129673710 has 40 divisors (see below), whose sum is σ = 348680376. Its totient is φ = 34579440.

The previous prime is 129673673. The next prime is 129673711. The reversal of 129673710 is 17376921.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129673711) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 79236 + ... + 80855.

Almost surely, 2^129673710 is an apocalyptic number.

129673710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129673710 is an abundant number, since it is smaller than the sum of its proper divisors (219006666).

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

129673710 is a wasteful number, since it uses less digits than its factorization.

129673710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160110 (or 160101 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 129673710 is about 11387.4364981764. The cubic root of 129673710 is about 506.1555214638.

The spelling of 129673710 in words is "one hundred twenty-nine million, six hundred seventy-three thousand, seven hundred ten".