12049947 has 24 divisors (see below), whose sum is σ = 21423584. Its totient is φ = 6355584.

The previous prime is 12049943. The next prime is 12049963. The reversal of 12049947 is 74994021.

12049947 is a `hidden beast` number, since 120 + 499 + 47 = 666.

It is not a de Polignac number, because 12049947 - 2² = 12049943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12049943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6538 + ... + 8175.

Almost surely, 2^12049947 is an apocalyptic number.

12049947 is a deficient number, since it is larger than the sum of its proper divisors (9373637).

12049947 is a wasteful number, since it uses less digits than its factorization.

12049947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14739 (or 14736 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12049947 is about 3471.3033575301. The cubic root of 12049947 is about 229.2600479528.

It can be divided in two parts, 12049 and 947, that added together give a square (12996 = 114²).

The spelling of 12049947 in words is "twelve million, forty-nine thousand, nine hundred forty-seven".