12747000 has 128 divisors (see below), whose sum is σ = 45527040. Its totient is φ = 2908800.

The previous prime is 12746999. The next prime is 12747001. The reversal of 12747000 is 74721.

It is an interprime number because it is at equal distance from previous prime (12746999) and next prime (12747001).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12747001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20697 + ... + 21303.

It is an arithmetic number, because the mean of its divisors is an integer number (355680).

Almost surely, 2^12747000 is an apocalyptic number.

12747000 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 12747000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22763520).

12747000 is an abundant number, since it is smaller than the sum of its proper divisors (32780040).

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

12747000 is a wasteful number, since it uses less digits than its factorization.

12747000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 12747000 is about 3570.2941055325. The cubic root of 12747000 is about 233.5981121227.

The spelling of 12747000 in words is "twelve million, seven hundred forty-seven thousand".