850011601 has 4 divisors (see below), whose sum is σ = 854040304. Its totient is φ = 845982900.

The previous prime is 850011587. The next prime is 850011629. The reversal of 850011601 is 106110058.

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-850011601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850011691) 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, 2014035 + ... + 2014456.

It is an arithmetic number, because the mean of its divisors is an integer number (213510076).

Almost surely, 2^850011601 is an apocalyptic number.

It is an amenable number.

850011601 is a deficient number, since it is larger than the sum of its proper divisors (4028703).

850011601 is a wasteful number, since it uses less digits than its factorization.

850011601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028702.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 850011601 is about 29154.9584290563. The cubic root of 850011601 is about 947.2725466796.

Adding to 850011601 its reverse (106110058), we get a palindrome (956121659).

The spelling of 850011601 in words is "eight hundred fifty million, eleven thousand, six hundred one".