129904764 has 24 divisors (see below), whose sum is σ = 330667008. Its totient is φ = 39365040.

The previous prime is 129904751. The next prime is 129904777. The reversal of 129904764 is 467409921.

It is an interprime number because it is at equal distance from previous prime (129904751) and next prime (129904777).

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, 491932 + ... + 492195.

It is an arithmetic number, because the mean of its divisors is an integer number (13777792).

Almost surely, 2^129904764 is an apocalyptic number.

It is an amenable number.

129904764 is an abundant number, since it is smaller than the sum of its proper divisors (200762244).

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

129904764 is a wasteful number, since it uses less digits than its factorization.

129904764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984145 (or 984143 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 129904764 is about 11397.5771109477. The cubic root of 129904764 is about 506.4559675245.

The spelling of 129904764 in words is "one hundred twenty-nine million, nine hundred four thousand, seven hundred sixty-four".