850835109 has 16 divisors (see below), whose sum is σ = 1162962944. Its totient is φ = 553014000.

The previous prime is 850835101. The next prime is 850835131. The reversal of 850835109 is 901538058.

It is not a de Polignac number, because 850835109 - 2³ = 850835101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850835101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67884 + ... + 79434.

It is an arithmetic number, because the mean of its divisors is an integer number (72685184).

Almost surely, 2^850835109 is an apocalyptic number.

It is an amenable number.

850835109 is a deficient number, since it is larger than the sum of its proper divisors (312127835).

850835109 is a wasteful number, since it uses less digits than its factorization.

850835109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12168.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 850835109 is about 29169.0779593733. The cubic root of 850835109 is about 947.5783600488.

The spelling of 850835109 in words is "eight hundred fifty million, eight hundred thirty-five thousand, one hundred nine".