850491930 has 64 divisors (see below), whose sum is σ = 2135144448. Its totient is φ = 216406080.

The previous prime is 850491923. The next prime is 850491937. The reversal of 850491930 is 39194058.

850491930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (850491923) and next prime (850491937).

It is not an unprimeable number, because it can be changed into a prime (850491937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334765 + ... + 337295.

It is an arithmetic number, because the mean of its divisors is an integer number (33361632).

Almost surely, 2^850491930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850491930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067572224).

850491930 is an abundant number, since it is smaller than the sum of its proper divisors (1284652518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

850491930 is a wasteful number, since it uses less digits than its factorization.

850491930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 850491930 is about 29163.1947838367. The cubic root of 850491930 is about 947.4509429887.

The spelling of 850491930 in words is "eight hundred fifty million, four hundred ninety-one thousand, nine hundred thirty".