830171609 has 4 divisors (see below), whose sum is σ = 830486016. Its totient is φ = 829857204.

The previous prime is 830171597. The next prime is 830171651. The reversal of 830171609 is 906171038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-830171609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830101609) 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, 153209 + ... + 158534.

It is an arithmetic number, because the mean of its divisors is an integer number (207621504).

Almost surely, 2^830171609 is an apocalyptic number.

It is an amenable number.

830171609 is a deficient number, since it is larger than the sum of its proper divisors (314407).

830171609 is a wasteful number, since it uses less digits than its factorization.

830171609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314406.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 830171609 is about 28812.6987455184. The cubic root of 830171609 is about 939.8444019652.

The spelling of 830171609 in words is "eight hundred thirty million, one hundred seventy-one thousand, six hundred nine".