12371947 has 4 divisors (see below), whose sum is σ = 14139376. Its totient is φ = 10604520.

The previous prime is 12371929. The next prime is 12371981. The reversal of 12371947 is 74917321.

12371947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74917321 = 6547 ⋅11443.

It is a cyclic number.

It is not a de Polignac number, because 12371947 - 2⁷ = 12371819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12371987) 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, 883704 + ... + 883717.

It is an arithmetic number, because the mean of its divisors is an integer number (3534844).

Almost surely, 2^12371947 is an apocalyptic number.

12371947 is a deficient number, since it is larger than the sum of its proper divisors (1767429).

12371947 is an equidigital number, since it uses as much as digits as its factorization.

12371947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767428.

The product of its digits is 10584, while the sum is 34.

The square root of 12371947 is about 3517.3778585759. The cubic root of 12371947 is about 231.2842275122.

The spelling of 12371947 in words is "twelve million, three hundred seventy-one thousand, nine hundred forty-seven".