842785983 has 48 divisors (see below), whose sum is σ = 1397760000. Its totient is φ = 485020224.

The previous prime is 842785969. The next prime is 842786003. The reversal of 842785983 is 389587248.

It is a happy number.

842785983 is a `hidden beast` number, since 8 + 42 + 7 + 8 + 598 + 3 = 666.

It is not a de Polignac number, because 842785983 - 2⁶ = 842785919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842785283) 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 47 ways as a sum of consecutive naturals, for example, 173218 + ... + 178016.

It is an arithmetic number, because the mean of its divisors is an integer number (29120000).

Almost surely, 2^842785983 is an apocalyptic number.

842785983 is a deficient number, since it is larger than the sum of its proper divisors (554974017).

842785983 is a wasteful number, since it uses less digits than its factorization.

842785983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916 (or 4913 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 842785983 is about 29030.7764794537. The cubic root of 842785983 is about 944.5807731471.

The spelling of 842785983 in words is "eight hundred forty-two million, seven hundred eighty-five thousand, nine hundred eighty-three".