12047405 has 8 divisors (see below), whose sum is σ = 14479584. Its totient is φ = 9622800.

The previous prime is 12047393. The next prime is 12047411. The reversal of 12047405 is 50474021.

12047405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12047405 - 2⁶ = 12047341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2570 + ... + 5540.

It is an arithmetic number, because the mean of its divisors is an integer number (1809948).

Almost surely, 2^12047405 is an apocalyptic number.

It is an amenable number.

12047405 is a deficient number, since it is larger than the sum of its proper divisors (2432179).

12047405 is an equidigital number, since it uses as much as digits as its factorization.

12047405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 12047405 is about 3470.9371933240. The cubic root of 12047405 is about 229.2439256128.

The spelling of 12047405 in words is "twelve million, forty-seven thousand, four hundred five".