12729760 has 24 divisors (see below), whose sum is σ = 30074436. Its totient is φ = 5091840.

The previous prime is 12729727. The next prime is 12729779. The reversal of 12729760 is 6792721.

It can be written as a sum of positive squares in 2 ways, for example, as 11861136 + 868624 = 3444^2 + 932^2 .

It is a super-3 number, since 3×12729760³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39621 + ... + 39940.

Almost surely, 2^12729760 is an apocalyptic number.

12729760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12729760 is an abundant number, since it is smaller than the sum of its proper divisors (17344676).

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

12729760 is an equidigital number, since it uses as much as digits as its factorization.

12729760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79576 (or 79568 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 12729760 is about 3567.8789217125. The cubic root of 12729760 is about 233.4927527337.

The spelling of 12729760 in words is "twelve million, seven hundred twenty-nine thousand, seven hundred sixty".