8125665 has 8 divisors (see below), whose sum is σ = 13001088. Its totient is φ = 4333680.

The previous prime is 8125639. The next prime is 8125669. The reversal of 8125665 is 5665218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8125665 - 2⁹ = 8125153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8125669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270841 + ... + 270870.

It is an arithmetic number, because the mean of its divisors is an integer number (1625136).

Almost surely, 2^8125665 is an apocalyptic number.

It is an amenable number.

8125665 is a deficient number, since it is larger than the sum of its proper divisors (4875423).

8125665 is a wasteful number, since it uses less digits than its factorization.

8125665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541719.

The product of its digits is 14400, while the sum is 33.

The square root of 8125665 is about 2850.5552090777. Note that the first 3 decimals coincide. The cubic root of 8125665 is about 201.0417724621.

The spelling of 8125665 in words is "eight million, one hundred twenty-five thousand, six hundred sixty-five".