12887897 has 8 divisors (see below), whose sum is σ = 14290752. Its totient is φ = 11523600.

The previous prime is 12887893. The next prime is 12887923. The reversal of 12887897 is 79878821.

It is a happy number.

12887897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12887897 - 2² = 12887893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12887893) 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, 8933 + ... + 10274.

It is an arithmetic number, because the mean of its divisors is an integer number (1786344).

Almost surely, 2^12887897 is an apocalyptic number.

It is an amenable number.

12887897 is a deficient number, since it is larger than the sum of its proper divisors (1402855).

12887897 is a wasteful number, since it uses less digits than its factorization.

12887897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19279.

The product of its digits is 451584, while the sum is 50.

The square root of 12887897 is about 3589.9717269082. The cubic root of 12887897 is about 234.4556405652.

The spelling of 12887897 in words is "twelve million, eight hundred eighty-seven thousand, eight hundred ninety-seven".