847683225 has 45 divisors (see below), whose sum is σ = 1572633007. Its totient is φ = 451398960.

The previous prime is 847683197. The next prime is 847683229. The reversal of 847683225 is 522386748.

The square root of 847683225 is 29115.

It is a perfect power (a square), and thus also a powerful number.

847683225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 305165961 + 542517264 = 17469^2 + 23292^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 847683225 - 2¹⁵ = 847650457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (847683229) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1309852 + ... + 1310498.

Almost surely, 2^847683225 is an apocalyptic number.

847683225 is the 29115-th square number.

847683225 is the 14558-th centered octagonal number.

It is an amenable number.

847683225 is a deficient number, since it is larger than the sum of its proper divisors (724949782).

847683225 is an frugal number, since it uses more digits than its factorization.

847683225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 655 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The cubic root of 847683225 is about 946.4068237421.

The spelling of 847683225 in words is "eight hundred forty-seven million, six hundred eighty-three thousand, two hundred twenty-five".