850905013 has 8 divisors (see below), whose sum is σ = 972639360. Its totient is φ = 729214800.

The previous prime is 850905007. The next prime is 850905017. The reversal of 850905013 is 310509058.

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

It is a cyclic number.

It is not a de Polignac number, because 850905013 - 2⁹ = 850904501 is a prime.

It is a super-2 number, since 2×850905013² = 1448078682297060338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850905017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69288 + ... + 80638.

It is an arithmetic number, because the mean of its divisors is an integer number (121579920).

Almost surely, 2^850905013 is an apocalyptic number.

It is an amenable number.

850905013 is a deficient number, since it is larger than the sum of its proper divisors (121734347).

850905013 is a wasteful number, since it uses less digits than its factorization.

850905013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22067.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 850905013 is about 29170.2761899849. The cubic root of 850905013 is about 947.6043101234.

The spelling of 850905013 in words is "eight hundred fifty million, nine hundred five thousand, thirteen".