12810447 has 16 divisors (see below), whose sum is σ = 20438880. Its totient is φ = 7883136.

The previous prime is 12810439. The next prime is 12810451. The reversal of 12810447 is 74401821.

It is not a de Polignac number, because 12810447 - 2³ = 12810439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 12810447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12810407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17898 + ... + 18599.

It is an arithmetic number, because the mean of its divisors is an integer number (1277430).

Almost surely, 2^12810447 is an apocalyptic number.

12810447 is a deficient number, since it is larger than the sum of its proper divisors (7628433).

12810447 is a wasteful number, since it uses less digits than its factorization.

12810447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36519 (or 36513 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 12810447 is about 3579.1684788509. The cubic root of 12810447 is about 233.9850417789.

The spelling of 12810447 in words is "twelve million, eight hundred ten thousand, four hundred forty-seven".