12047887 has 4 divisors (see below), whose sum is σ = 12058920. Its totient is φ = 12036856.

The previous prime is 12047863. The next prime is 12047909. The reversal of 12047887 is 78874021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78874021 = 139 ⋅567439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12047887 is a prime.

It is a super-3 number, since 3×12047887³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042887) 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, 3673 + ... + 6130.

It is an arithmetic number, because the mean of its divisors is an integer number (3014730).

Almost surely, 2^12047887 is an apocalyptic number.

12047887 is a deficient number, since it is larger than the sum of its proper divisors (11033).

12047887 is an equidigital number, since it uses as much as digits as its factorization.

12047887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11032.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 12047887 is about 3471.0066263261. The cubic root of 12047887 is about 229.2469828161.

The spelling of 12047887 in words is "twelve million, forty-seven thousand, eight hundred eighty-seven".