828647325 has 72 divisors (see below), whose sum is σ = 1633097856. Its totient is φ = 401623200.

The previous prime is 828647311. The next prime is 828647327. The reversal of 828647325 is 523746828.

828647325 is a `hidden beast` number, since 8 + 286 + 47 + 325 = 666.

828647325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 828647325 - 2⁵ = 828647293 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828647327) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 298092 + ... + 300858.

Almost surely, 2^828647325 is an apocalyptic number.

It is an amenable number.

828647325 is a deficient number, since it is larger than the sum of its proper divisors (804450531).

828647325 is a wasteful number, since it uses less digits than its factorization.

828647325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816 (or 2786 counting only the distinct ones).

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

The square root of 828647325 is about 28786.2349917456. The cubic root of 828647325 is about 939.2688312196.

It can be divided in two parts, 8286 and 47325, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 828647325 in words is "eight hundred twenty-eight million, six hundred forty-seven thousand, three hundred twenty-five".