12487641 has 4 divisors (see below), whose sum is σ = 16650192. Its totient is φ = 8325092.

The previous prime is 12487627. The next prime is 12487691. The reversal of 12487641 is 14678421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12487641 - 2¹¹ = 12485593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12487691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081271 + ... + 2081276.

It is an arithmetic number, because the mean of its divisors is an integer number (4162548).

Almost surely, 2^12487641 is an apocalyptic number.

It is an amenable number.

12487641 is a deficient number, since it is larger than the sum of its proper divisors (4162551).

12487641 is an equidigital number, since it uses as much as digits as its factorization.

12487641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162550.

The product of its digits is 10752, while the sum is 33.

The square root of 12487641 is about 3533.7856471495. The cubic root of 12487641 is about 232.0029292635.

The spelling of 12487641 in words is "twelve million, four hundred eighty-seven thousand, six hundred forty-one".