12683720 has 64 divisors (see below), whose sum is σ = 33022080. Its totient is φ = 4294656.

The previous prime is 12683689. The next prime is 12683779. The reversal of 12683720 is 2738621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26927 + ... + 27393.

It is an arithmetic number, because the mean of its divisors is an integer number (515970).

Almost surely, 2^12683720 is an apocalyptic number.

12683720 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 12683720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16511040).

12683720 is an abundant number, since it is smaller than the sum of its proper divisors (20338360).

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

12683720 is a wasteful number, since it uses less digits than its factorization.

12683720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12683720 is about 3561.4210646875. The cubic root of 12683720 is about 233.2109199166.

The spelling of 12683720 in words is "twelve million, six hundred eighty-three thousand, seven hundred twenty".