12408887 has 4 divisors (see below), whose sum is σ = 12522840. Its totient is φ = 12294936.

The previous prime is 12408871. The next prime is 12408889. The reversal of 12408887 is 78880421.

It is a happy number.

12408887 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 12408887 - 2⁴ = 12408871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12408887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12408889) 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, 56813 + ... + 57030.

It is an arithmetic number, because the mean of its divisors is an integer number (3130710).

Almost surely, 2^12408887 is an apocalyptic number.

12408887 is a deficient number, since it is larger than the sum of its proper divisors (113953).

12408887 is a wasteful number, since it uses less digits than its factorization.

12408887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113952.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 12408887 is about 3522.6250155246. The cubic root of 12408887 is about 231.5141872827.

The spelling of 12408887 in words is "twelve million, four hundred eight thousand, eight hundred eighty-seven".