12485987 has 6 divisors (see below), whose sum is σ = 13053012. Its totient is φ = 11942612.

The previous prime is 12485981. The next prime is 12485999. The reversal of 12485987 is 78958421.

It is not a de Polignac number, because 12485987 - 2⁴ = 12485971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12485981) by changing a digit.

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, 11273 + ... + 12330.

It is an arithmetic number, because the mean of its divisors is an integer number (2175502).

Almost surely, 2^12485987 is an apocalyptic number.

12485987 is a deficient number, since it is larger than the sum of its proper divisors (567025).

12485987 is an equidigital number, since it uses as much as digits as its factorization.

12485987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23649 (or 23626 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The square root of 12485987 is about 3533.5516127545. The cubic root of 12485987 is about 231.9926858079.

The spelling of 12485987 in words is "twelve million, four hundred eighty-five thousand, nine hundred eighty-seven".