129084670 has 64 divisors (see below), whose sum is σ = 287400960. Its totient is φ = 41040000.

The previous prime is 129084653. The next prime is 129084721. The reversal of 129084670 is 76480921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24795 + ... + 29545.

It is an arithmetic number, because the mean of its divisors is an integer number (4490640).

Almost surely, 2^129084670 is an apocalyptic number.

129084670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129084670 is an abundant number, since it is smaller than the sum of its proper divisors (158316290).

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

129084670 is a wasteful number, since it uses less digits than its factorization.

129084670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 129084670 is about 11361.5434690890. The cubic root of 129084670 is about 505.3879579347.

It can be divided in two parts, 12908 and 4670, that added together give a triangular number (17578 = T₁₈₇).

The spelling of 129084670 in words is "one hundred twenty-nine million, eighty-four thousand, six hundred seventy".