12478718 has 16 divisors (see below), whose sum is σ = 21651840. Its totient is φ = 5283096.

The previous prime is 12478717. The next prime is 12478721. The reversal of 12478718 is 81787421.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4208 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (1353240).

Almost surely, 2^12478718 is an apocalyptic number.

12478718 is a deficient number, since it is larger than the sum of its proper divisors (9173122).

12478718 is a wasteful number, since it uses less digits than its factorization.

12478718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10831.

The product of its digits is 25088, while the sum is 38.

The square root of 12478718 is about 3532.5228944764. The cubic root of 12478718 is about 231.9476571372.

The spelling of 12478718 in words is "twelve million, four hundred seventy-eight thousand, seven hundred eighteen".