12947500 has 30 divisors (see below), whose sum is σ = 28319060. Its totient is φ = 5178000.

The previous prime is 12947497. The next prime is 12947507. The reversal of 12947500 is 574921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12947507) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 90 + ... + 5089.

Almost surely, 2^12947500 is an apocalyptic number.

12947500 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 12947500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14159530).

12947500 is an abundant number, since it is smaller than the sum of its proper divisors (15371560).

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

12947500 is an equidigital number, since it uses as much as digits as its factorization.

12947500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203 (or 5186 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12947500 is about 3598.2634700644. The cubic root of 12947500 is about 234.8165158977.

The spelling of 12947500 in words is "twelve million, nine hundred forty-seven thousand, five hundred".