12769720 has 64 divisors (see below), whose sum is σ = 30909600. Its totient is φ = 4730880.

The previous prime is 12769709. The next prime is 12769739. The reversal of 12769720 is 2796721.

12769720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent 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, 60415 + ... + 60625.

Almost surely, 2^12769720 is an apocalyptic number.

12769720 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 12769720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15454800).

12769720 is an abundant number, since it is smaller than the sum of its proper divisors (18139880).

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

12769720 is a wasteful number, since it uses less digits than its factorization.

12769720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 324 counting only the distinct ones).

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

The square root of 12769720 is about 3573.4744996991. The cubic root of 12769720 is about 233.7368166281.

The spelling of 12769720 in words is "twelve million, seven hundred sixty-nine thousand, seven hundred twenty".