12716478 has 24 divisors (see below), whose sum is σ = 28226016. Its totient is φ = 4135200.

The previous prime is 12716467. The next prime is 12716489. The reversal of 12716478 is 87461721.

12716478 is a `hidden beast` number, since 1 + 2 + 7 + 1 + 647 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (12716467) and next prime (12716489).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7878 + ... + 9353.

It is an arithmetic number, because the mean of its divisors is an integer number (1176084).

Almost surely, 2^12716478 is an apocalyptic number.

12716478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12716478 is an abundant number, since it is smaller than the sum of its proper divisors (15509538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12716478 is a wasteful number, since it uses less digits than its factorization.

12716478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17280 (or 17277 counting only the distinct ones).

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

The square root of 12716478 is about 3566.0171059601. The cubic root of 12716478 is about 233.4115171104.

The spelling of 12716478 in words is "twelve million, seven hundred sixteen thousand, four hundred seventy-eight".