8129900 has 18 divisors (see below), whose sum is σ = 17642100. Its totient is φ = 3251920.

The previous prime is 8129873. The next prime is 8129903. The reversal of 8129900 is 99218.

It is not an unprimeable number, because it can be changed into a prime (8129903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40550 + ... + 40749.

Almost surely, 2^8129900 is an apocalyptic number.

It is an amenable number.

8129900 is an abundant number, since it is smaller than the sum of its proper divisors (9512200).

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

8129900 is a wasteful number, since it uses less digits than its factorization.

8129900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81313 (or 81306 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 8129900 is about 2851.2979500571. The cubic root of 8129900 is about 201.0766932567.

The spelling of 8129900 in words is "eight million, one hundred twenty-nine thousand, nine hundred".