12323987 has 6 divisors (see below), whose sum is σ = 13345092. Its totient is φ = 11375832.

The previous prime is 12323981. The next prime is 12323999. The reversal of 12323987 is 78932321.

It is not a de Polignac number, because 12323987 - 2¹⁸ = 12061843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12323981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36293 + ... + 36630.

It is an arithmetic number, because the mean of its divisors is an integer number (2224182).

Almost surely, 2^12323987 is an apocalyptic number.

12323987 is a deficient number, since it is larger than the sum of its proper divisors (1021105).

12323987 is an equidigital number, since it uses as much as digits as its factorization.

12323987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72949 (or 72936 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 12323987 is about 3510.5536600371. The cubic root of 12323987 is about 230.9849818138.

The spelling of 12323987 in words is "twelve million, three hundred twenty-three thousand, nine hundred eighty-seven".