8199128 has 32 divisors (see below), whose sum is σ = 18140160. Its totient is φ = 3399840.

The previous prime is 8199101. The next prime is 8199133. The reversal of 8199128 is 8219918.

It is a junction number, because it is equal to n+sod(n) for n = 8199091 and 8199100.

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, 626 + ... + 4097.

It is an arithmetic number, because the mean of its divisors is an integer number (566880).

Almost surely, 2^8199128 is an apocalyptic number.

It is an amenable number.

8199128 is an abundant number, since it is smaller than the sum of its proper divisors (9941032).

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

8199128 is a wasteful number, since it uses less digits than its factorization.

8199128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767 (or 4763 counting only the distinct ones).

The product of its digits is 10368, while the sum is 38.

The square root of 8199128 is about 2863.4119508027. The cubic root of 8199128 is about 201.6458192445.

The spelling of 8199128 in words is "eight million, one hundred ninety-nine thousand, one hundred twenty-eight".