847983 has 4 divisors (see below), whose sum is σ = 1130648. Its totient is φ = 565320.

The previous prime is 847969. The next prime is 847991. The reversal of 847983 is 389748.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 847983 - 2⁴ = 847967 is a prime.

It is a D-number.

It is a Duffinian number.

847983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141328 + ... + 141333.

It is an arithmetic number, because the mean of its divisors is an integer number (282662).

2⁸⁴⁷⁹⁸³ is an apocalyptic number.

847983 is a deficient number, since it is larger than the sum of its proper divisors (282665).

847983 is a wasteful number, since it uses less digits than its factorization.

847983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282664.

The product of its digits is 48384, while the sum is 39.

The square root of 847983 is about 920.8599242013. The cubic root of 847983 is about 94.6518373143.

It can be divided in two parts, 847 and 983, that added together give a triangular number (1830 = T₆₀).

The spelling of 847983 in words is "eight hundred forty-seven thousand, nine hundred eighty-three".