12471687 has 6 divisors (see below), whose sum is σ = 18014672. Its totient is φ = 8314452.

The previous prime is 12471649. The next prime is 12471689. The reversal of 12471687 is 78617421.

It is not a de Polignac number, because 12471687 - 2⁷ = 12471559 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 (12471689) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 692863 + ... + 692880.

Almost surely, 2^12471687 is an apocalyptic number.

12471687 is a deficient number, since it is larger than the sum of its proper divisors (5542985).

12471687 is a wasteful number, since it uses less digits than its factorization.

12471687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385749 (or 1385746 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 12471687 is about 3531.5275731615. The cubic root of 12471687 is about 231.9040861453.

The spelling of 12471687 in words is "twelve million, four hundred seventy-one thousand, six hundred eighty-seven".