8289725 has 6 divisors (see below), whose sum is σ = 10279290. Its totient is φ = 6631760.

The previous prime is 8289703. The next prime is 8289731. The reversal of 8289725 is 5279828.

It is a happy number.

8289725 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 3 ways, for example, as 58564 + 8231161 = 242^2 + 2869^2 .

It is not a de Polignac number, because 8289725 - 2⁸ = 8289469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165770 + ... + 165819.

It is an arithmetic number, because the mean of its divisors is an integer number (1713215).

Almost surely, 2^8289725 is an apocalyptic number.

It is an amenable number.

8289725 is a deficient number, since it is larger than the sum of its proper divisors (1989565).

8289725 is a wasteful number, since it uses less digits than its factorization.

8289725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331599 (or 331594 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 8289725 is about 2879.1882536576. The cubic root of 8289725 is about 202.3858015865.

The spelling of 8289725 in words is "eight million, two hundred eighty-nine thousand, seven hundred twenty-five".