12709825 has 6 divisors (see below), whose sum is σ = 15760214. Its totient is φ = 10167840.

The previous prime is 12709817. The next prime is 12709847. The reversal of 12709825 is 52890721.

It can be written as a sum of positive squares in 3 ways, for example, as 986049 + 11723776 = 993^2 + 3424^2 .

It is not a de Polignac number, because 12709825 - 2³ = 12709817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254172 + ... + 254221.

Almost surely, 2^12709825 is an apocalyptic number.

It is an amenable number.

12709825 is a deficient number, since it is larger than the sum of its proper divisors (3050389).

12709825 is an equidigital number, since it uses as much as digits as its factorization.

12709825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508403 (or 508398 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 12709825 is about 3565.0841504795. The cubic root of 12709825 is about 233.3708046397.

The spelling of 12709825 in words is "twelve million, seven hundred nine thousand, eight hundred twenty-five".