12747478 has 8 divisors (see below), whose sum is σ = 19137240. Its totient is φ = 6368400.

The previous prime is 12747463. The next prime is 12747503. The reversal of 12747478 is 87474721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12747478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (2392155).

Almost surely, 2^12747478 is an apocalyptic number.

12747478 is a deficient number, since it is larger than the sum of its proper divisors (6389762).

12747478 is a wasteful number, since it uses less digits than its factorization.

12747478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342.

The product of its digits is 87808, while the sum is 40.

The square root of 12747478 is about 3570.3610461689. The cubic root of 12747478 is about 233.6010319863.

It can be divided in two parts, 12747 and 478, that added together give a square (13225 = 115²).

The spelling of 12747478 in words is "twelve million, seven hundred forty-seven thousand, four hundred seventy-eight".