825706216 has 32 divisors (see below), whose sum is σ = 1593030600. Its totient is φ = 400988160.

The previous prime is 825706213. The next prime is 825706243. The reversal of 825706216 is 612607528.

It is a happy number.

825706216 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 4 ways, for example, as 565012900 + 260693316 = 23770^2 + 16146^2 .

It is not an unprimeable number, because it can be changed into a prime (825706213) 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, 69616 + ... + 80608.

Almost surely, 2^825706216 is an apocalyptic number.

It is an amenable number.

825706216 is a deficient number, since it is larger than the sum of its proper divisors (767324384).

825706216 is a wasteful number, since it uses less digits than its factorization.

825706216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269 (or 11265 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 825706216 is about 28735.1042455043. The cubic root of 825706216 is about 938.1562683381.

The spelling of 825706216 in words is "eight hundred twenty-five million, seven hundred six thousand, two hundred sixteen".