12487997 has 8 divisors (see below), whose sum is σ = 13185600. Its totient is φ = 11794464.

The previous prime is 12487973. The next prime is 12488023. The reversal of 12487997 is 79978421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12487997 - 2⁶ = 12487933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12487927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6968 + ... + 8574.

It is an arithmetic number, because the mean of its divisors is an integer number (1648200).

Almost surely, 2^12487997 is an apocalyptic number.

It is an amenable number.

12487997 is a deficient number, since it is larger than the sum of its proper divisors (697603).

12487997 is a wasteful number, since it uses less digits than its factorization.

12487997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035.

The product of its digits is 254016, while the sum is 47.

The square root of 12487997 is about 3533.8360177009. The cubic root of 12487997 is about 232.0051339034.

The spelling of 12487997 in words is "twelve million, four hundred eighty-seven thousand, nine hundred ninety-seven".