8389725 has 12 divisors (see below), whose sum is σ = 13871136. Its totient is φ = 4474480.

The previous prime is 8389709. The next prime is 8389727. The reversal of 8389725 is 5279838.

8389725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8389725 - 2⁴ = 8389709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8389727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55857 + ... + 56006.

It is an arithmetic number, because the mean of its divisors is an integer number (1155928).

Almost surely, 2^8389725 is an apocalyptic number.

It is an amenable number.

8389725 is a deficient number, since it is larger than the sum of its proper divisors (5481411).

8389725 is a wasteful number, since it uses less digits than its factorization.

8389725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111876 (or 111871 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 8389725 is about 2896.5022009313. The cubic root of 8389725 is about 203.1963528418.

The spelling of 8389725 in words is "eight million, three hundred eighty-nine thousand, seven hundred twenty-five".