12887697 has 4 divisors (see below), whose sum is σ = 17183600. Its totient is φ = 8591796.

The previous prime is 12887657. The next prime is 12887713. The reversal of 12887697 is 79678821.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79678821 = 3 ⋅26559607.

It is not a de Polignac number, because 12887697 - 2¹² = 12883601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12887617) 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, 2147947 + ... + 2147952.

It is an arithmetic number, because the mean of its divisors is an integer number (4295900).

Almost surely, 2^12887697 is an apocalyptic number.

It is an amenable number.

12887697 is a deficient number, since it is larger than the sum of its proper divisors (4295903).

12887697 is an equidigital number, since it uses as much as digits as its factorization.

12887697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295902.

The product of its digits is 338688, while the sum is 48.

The square root of 12887697 is about 3589.9438714275. The cubic root of 12887697 is about 234.4544277640.

The spelling of 12887697 in words is "twelve million, eight hundred eighty-seven thousand, six hundred ninety-seven".