847420 has 24 divisors (see below), whose sum is σ = 2034144. Its totient is φ = 290496.

The previous prime is 847393. The next prime is 847423. The reversal of 847420 is 24748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847423) by changing a digit.

847420 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2887 + ... + 3166.

It is an arithmetic number, because the mean of its divisors is an integer number (84756).

2⁸⁴⁷⁴²⁰ is an apocalyptic number.

It is an amenable number.

847420 is an abundant number, since it is smaller than the sum of its proper divisors (1186724).

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

847420 is a wasteful number, since it uses less digits than its factorization.

847420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6069 (or 6067 counting only the distinct ones).

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

The square root of 847420 is about 920.5541809150. The cubic root of 847420 is about 94.6308853290.

The spelling of 847420 in words is "eight hundred forty-seven thousand, four hundred twenty".