129790806 has 12 divisors (see below), whose sum is σ = 259637436. Its totient is φ = 43254300.

The previous prime is 129790777. The next prime is 129790811. The reversal of 129790806 is 608097921.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25581 + ... + 30231.

It is an arithmetic number, because the mean of its divisors is an integer number (21636453).

Almost surely, 2^129790806 is an apocalyptic number.

129790806 is an abundant number, since it is smaller than the sum of its proper divisors (129846630).

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

129790806 is an frugal number, since it uses more digits than its factorization.

129790806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9307 (or 4656 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 129790806 is about 11392.5767936846. The cubic root of 129790806 is about 506.3078292725.

The spelling of 129790806 in words is "one hundred twenty-nine million, seven hundred ninety thousand, eight hundred six".