12000047 has 4 divisors (see below), whose sum is σ = 12012120. Its totient is φ = 11987976.

The previous prime is 12000029. The next prime is 12000073. The reversal of 12000047 is 74000021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74000021 = 211 ⋅350711.

It is a cyclic number.

It is not a de Polignac number, because 12000047 - 2⁸ = 11999791 is a prime.

It is a super-2 number, since 2×12000047² = 288002256004418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11999995 and 12000040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000017) 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, 4397 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (3003030).

Almost surely, 2^12000047 is an apocalyptic number.

12000047 is a deficient number, since it is larger than the sum of its proper divisors (12073).

12000047 is a wasteful number, since it uses less digits than its factorization.

12000047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12072.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 12000047 is about 3464.1083989968. The cubic root of 12000047 is about 228.9431474079.

Adding to 12000047 its reverse (74000021), we get a palindrome (86000068).

The spelling of 12000047 in words is "twelve million, forty-seven", and thus it is an aban number and an uban number.