8128793 has 4 divisors (see below), whose sum is σ = 8134500. Its totient is φ = 8123088.

The previous prime is 8128781. The next prime is 8128801. The reversal of 8128793 is 3978218.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1227664 + 6901129 = 1108^2 + 2627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8128793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8128723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271 + ... + 4227.

It is an arithmetic number, because the mean of its divisors is an integer number (2033625).

Almost surely, 2^8128793 is an apocalyptic number.

It is an amenable number.

8128793 is a deficient number, since it is larger than the sum of its proper divisors (5707).

8128793 is a wasteful number, since it uses less digits than its factorization.

8128793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5706.

The product of its digits is 24192, while the sum is 38.

The square root of 8128793 is about 2851.1038213296. The cubic root of 8128793 is about 201.0675663710.

The spelling of 8128793 in words is "eight million, one hundred twenty-eight thousand, seven hundred ninety-three".