850320617 has 4 divisors (see below), whose sum is σ = 850822800. Its totient is φ = 849818436.

The previous prime is 850320589. The next prime is 850320619. The reversal of 850320617 is 716023058.

It is a happy number.

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 not a de Polignac number, because 850320617 - 2⁶ = 850320553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850320619) 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, 248543 + ... + 251940.

It is an arithmetic number, because the mean of its divisors is an integer number (212705700).

Almost surely, 2^850320617 is an apocalyptic number.

It is an amenable number.

850320617 is a deficient number, since it is larger than the sum of its proper divisors (502183).

850320617 is a wasteful number, since it uses less digits than its factorization.

850320617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502182.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 850320617 is about 29160.2574920044. The cubic root of 850320617 is about 947.3873242927.

The spelling of 850320617 in words is "eight hundred fifty million, three hundred twenty thousand, six hundred seventeen".