850531983 has 16 divisors (see below), whose sum is σ = 1298182656. Its totient is φ = 485218080.

The previous prime is 850531963. The next prime is 850532071. The reversal of 850531983 is 389135058.

850531983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 850531983 - 2²¹ = 848434831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850531943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20163 + ... + 45908.

It is an arithmetic number, because the mean of its divisors is an integer number (81136416).

Almost surely, 2^850531983 is an apocalyptic number.

850531983 is a deficient number, since it is larger than the sum of its proper divisors (447650673).

850531983 is a wasteful number, since it uses less digits than its factorization.

850531983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66694.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 850531983 is about 29163.8814803517. The cubic root of 850531983 is about 947.4658158152.

The spelling of 850531983 in words is "eight hundred fifty million, five hundred thirty-one thousand, nine hundred eighty-three".