12718671 has 16 divisors (see below), whose sum is σ = 19617024. Its totient is φ = 7179264.

The previous prime is 12718663. The next prime is 12718679. The reversal of 12718671 is 17681721.

It is an interprime number because it is at equal distance from previous prime (12718663) and next prime (12718679).

It is not a de Polignac number, because 12718671 - 2³ = 12718663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12718679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1906 + ... + 5391.

It is an arithmetic number, because the mean of its divisors is an integer number (1226064).

Almost surely, 2^12718671 is an apocalyptic number.

12718671 is a deficient number, since it is larger than the sum of its proper divisors (6898353).

12718671 is an equidigital number, since it uses as much as digits as its factorization.

12718671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7390.

The product of its digits is 4704, while the sum is 33.

The square root of 12718671 is about 3566.3245786103. The cubic root of 12718671 is about 233.4249338766.

The spelling of 12718671 in words is "twelve million, seven hundred eighteen thousand, six hundred seventy-one".