847225 has 6 divisors (see below), whose sum is σ = 1050590. Its totient is φ = 677760.

The previous prime is 847219. The next prime is 847237. The reversal of 847225 is 522748.

It can be written as a sum of positive squares in 3 ways, for example, as 219961 + 627264 = 469^2 + 792^2 .

It is not a de Polignac number, because 847225 - 2⁵ = 847193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 847193 and 847202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16920 + ... + 16969.

2⁸⁴⁷²²⁵ is an apocalyptic number.

It is an amenable number.

847225 is a deficient number, since it is larger than the sum of its proper divisors (203365).

847225 is a wasteful number, since it uses less digits than its factorization.

847225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33899 (or 33894 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 847225 is about 920.4482603601. The cubic root of 847225 is about 94.6236262610.

The spelling of 847225 in words is "eight hundred forty-seven thousand, two hundred twenty-five".