12647730 has 32 divisors (see below), whose sum is σ = 31953600. Its totient is φ = 3195072.

The previous prime is 12647729. The next prime is 12647753. The reversal of 12647730 is 3774621.

12647730 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 (30).

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, 10525 + ... + 11664.

It is an arithmetic number, because the mean of its divisors is an integer number (998550).

Almost surely, 2^12647730 is an apocalyptic number.

12647730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12647730 is an abundant number, since it is smaller than the sum of its proper divisors (19305870).

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

12647730 is a wasteful number, since it uses less digits than its factorization.

12647730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22218.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 12647730 is about 3556.3647169547. The cubic root of 12647730 is about 232.9901326355.

The spelling of 12647730 in words is "twelve million, six hundred forty-seven thousand, seven hundred thirty".