12407387 has 4 divisors (see below), whose sum is σ = 12479280. Its totient is φ = 12335496.

The previous prime is 12407383. The next prime is 12407393. The reversal of 12407387 is 78370421.

It is a happy number.

12407387 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.

It is a cyclic number.

It is not a de Polignac number, because 12407387 - 2² = 12407383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12407383) 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, 35687 + ... + 36032.

It is an arithmetic number, because the mean of its divisors is an integer number (3119820).

Almost surely, 2^12407387 is an apocalyptic number.

12407387 is a deficient number, since it is larger than the sum of its proper divisors (71893).

12407387 is an equidigital number, since it uses as much as digits as its factorization.

12407387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71892.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 12407387 is about 3522.4120996840. The cubic root of 12407387 is about 231.5048583431.

The spelling of 12407387 in words is "twelve million, four hundred seven thousand, three hundred eighty-seven".