12947480 has 64 divisors (see below), whose sum is σ = 35864640. Its totient is φ = 4096512.

The previous prime is 12947479. The next prime is 12947483. The reversal of 12947480 is 8474921.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 12947480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12947483) 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, 1862 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (560385).

Almost surely, 2^12947480 is an apocalyptic number.

12947480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12947480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17932320).

12947480 is an abundant number, since it is smaller than the sum of its proper divisors (22917160).

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

12947480 is a wasteful number, since it uses less digits than its factorization.

12947480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588 (or 3584 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 12947480 is about 3598.2606909450. The cubic root of 12947480 is about 234.8163949906.

The spelling of 12947480 in words is "twelve million, nine hundred forty-seven thousand, four hundred eighty".