847240 has 32 divisors (see below), whose sum is σ = 1944000. Its totient is φ = 332224.

The previous prime is 847237. The next prime is 847247. The reversal of 847240 is 42748.

847240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (847247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2181 + ... + 2539.

It is an arithmetic number, because the mean of its divisors is an integer number (60750).

2⁸⁴⁷²⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 847240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972000).

847240 is an abundant number, since it is smaller than the sum of its proper divisors (1096760).

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

847240 is a wasteful number, since it uses less digits than its factorization.

847240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 847240 is about 920.4564085279. The cubic root of 847240 is about 94.6241846904.

Adding to 847240 its reverse (42748), we get a palindrome (889988).

The spelling of 847240 in words is "eight hundred forty-seven thousand, two hundred forty".