12730672 has 10 divisors (see below), whose sum is σ = 24665708. Its totient is φ = 6365328.

The previous prime is 12730657. The next prime is 12730673. The reversal of 12730672 is 27603721.

It is a self number, because there is not a number n which added to its sum of digits gives 12730672.

It is not an unprimeable number, because it can be changed into a prime (12730673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397818 + ... + 397849.

Almost surely, 2^12730672 is an apocalyptic number.

It is an amenable number.

12730672 is a deficient number, since it is larger than the sum of its proper divisors (11935036).

12730672 is an equidigital number, since it uses as much as digits as its factorization.

12730672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795675 (or 795669 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 12730672 is about 3568.0067264511. The cubic root of 12730672 is about 233.4983286520.

The spelling of 12730672 in words is "twelve million, seven hundred thirty thousand, six hundred seventy-two".