850157709 has 16 divisors (see below), whose sum is σ = 1202086080. Its totient is φ = 532604160.

The previous prime is 850157701. The next prime is 850157719. The reversal of 850157709 is 907751058.

It is not a de Polignac number, because 850157709 - 2³ = 850157701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850157701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21102 + ... + 46320.

It is an arithmetic number, because the mean of its divisors is an integer number (75130380).

Almost surely, 2^850157709 is an apocalyptic number.

It is an amenable number.

850157709 is a deficient number, since it is larger than the sum of its proper divisors (351928371).

850157709 is a wasteful number, since it uses less digits than its factorization.

850157709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25900.

The product of its (nonzero) digits is 88200, while the sum is 42.

The square root of 850157709 is about 29157.4640358177. The cubic root of 850157709 is about 947.3268189459.

The spelling of 850157709 in words is "eight hundred fifty million, one hundred fifty-seven thousand, seven hundred nine".