12387908 has 12 divisors (see below), whose sum is σ = 23346540. Its totient is φ = 5717472.

The previous prime is 12387887. The next prime is 12387937. The reversal of 12387908 is 80978321.

It can be written as a sum of positive squares in 2 ways, for example, as 1044484 + 11343424 = 1022^2 + 3368^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119063 + ... + 119166.

It is an arithmetic number, because the mean of its divisors is an integer number (1945545).

Almost surely, 2^12387908 is an apocalyptic number.

It is an amenable number.

12387908 is a deficient number, since it is larger than the sum of its proper divisors (10958632).

12387908 is a wasteful number, since it uses less digits than its factorization.

12387908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238246 (or 238244 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 12387908 is about 3519.6460049272. The cubic root of 12387908 is about 231.3836443951.

The spelling of 12387908 in words is "twelve million, three hundred eighty-seven thousand, nine hundred eight".