12478687 has 12 divisors (see below), whose sum is σ = 14188440. Its totient is φ = 10908432.

The previous prime is 12478681. The next prime is 12478699. The reversal of 12478687 is 78687421.

It is not a de Polignac number, because 12478687 - 2³ = 12478679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3364 + ... + 6022.

It is an arithmetic number, because the mean of its divisors is an integer number (1182370).

Almost surely, 2^12478687 is an apocalyptic number.

12478687 is a deficient number, since it is larger than the sum of its proper divisors (1709753).

12478687 is a wasteful number, since it uses less digits than its factorization.

12478687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710 (or 2691 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 12478687 is about 3532.5185066748. The cubic root of 12478687 is about 231.9474650666.

The spelling of 12478687 in words is "twelve million, four hundred seventy-eight thousand, six hundred eighty-seven".