852195609 has 12 divisors (see below), whose sum is σ = 1284469056. Its totient is φ = 543428952.

The previous prime is 852195593. The next prime is 852195613. The reversal of 852195609 is 906591258.

852195609 is a `hidden beast` number, since 85 + 2 + 1 + 9 + 560 + 9 = 666.

It is not a de Polignac number, because 852195609 - 2⁴ = 852195593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (852195679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2058237 + ... + 2058650.

It is an arithmetic number, because the mean of its divisors is an integer number (107039088).

Almost surely, 2^852195609 is an apocalyptic number.

It is an amenable number.

852195609 is a deficient number, since it is larger than the sum of its proper divisors (432273447).

852195609 is a wasteful number, since it uses less digits than its factorization.

852195609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116916 (or 4116913 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 852195609 is about 29192.3895733117. The cubic root of 852195609 is about 948.0831557938.

The spelling of 852195609 in words is "eight hundred fifty-two million, one hundred ninety-five thousand, six hundred nine".