8439025 has 27 divisors (see below), whose sum is σ = 12321291. Its totient is φ = 5717040.

The previous prime is 8439007. The next prime is 8439043. The reversal of 8439025 is 5209348.

The square root of 8439025 is 2905.

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

It is an interprime number because it is at equal distance from previous prime (8439007) and next prime (8439043).

It can be written as a sum of positive squares in only one way, i.e., 3038049 + 5400976 = 1743^2 + 2324^2 .

It is not a de Polignac number, because 8439025 - 2⁹ = 8438513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 101634 + ... + 101716.

Almost surely, 2^8439025 is an apocalyptic number.

8439025 is the 2905-th square number.

8439025 is the 1453-rd centered octagonal number.

It is an amenable number.

8439025 is a deficient number, since it is larger than the sum of its proper divisors (3882266).

8439025 is an equidigital number, since it uses as much as digits as its factorization.

8439025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The cubic root of 8439025 is about 203.5935856520.

The spelling of 8439025 in words is "eight million, four hundred thirty-nine thousand, twenty-five".