12049647 has 4 divisors (see below), whose sum is σ = 16066200. Its totient is φ = 8033096.

The previous prime is 12049643. The next prime is 12049657. The reversal of 12049647 is 74694021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12049647 - 2² = 12049643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12049643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008272 + ... + 2008277.

It is an arithmetic number, because the mean of its divisors is an integer number (4016550).

Almost surely, 2^12049647 is an apocalyptic number.

12049647 is a deficient number, since it is larger than the sum of its proper divisors (4016553).

12049647 is an equidigital number, since it uses as much as digits as its factorization.

12049647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016552.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 12049647 is about 3471.2601458260. The cubic root of 12049647 is about 229.2581453557.

The spelling of 12049647 in words is "twelve million, forty-nine thousand, six hundred forty-seven".