12678472 has 32 divisors (see below), whose sum is σ = 25200000. Its totient is φ = 5963328.

The previous prime is 12678469. The next prime is 12678493. The reversal of 12678472 is 27487621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36154 + ... + 36502.

It is an arithmetic number, because the mean of its divisors is an integer number (787500).

Almost surely, 2^12678472 is an apocalyptic number.

It is an amenable number.

12678472 is a deficient number, since it is larger than the sum of its proper divisors (12521528).

12678472 is a wasteful number, since it uses less digits than its factorization.

12678472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 609 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 12678472 is about 3560.6842039136. The cubic root of 12678472 is about 233.1787511274.

The spelling of 12678472 in words is "twelve million, six hundred seventy-eight thousand, four hundred seventy-two".