12380387 has 4 divisors (see below), whose sum is σ = 12442800. Its totient is φ = 12317976.

The previous prime is 12380351. The next prime is 12380413. The reversal of 12380387 is 78308321.

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 12380387 - 2¹² = 12376291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12380887) 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, 30908 + ... + 31305.

It is an arithmetic number, because the mean of its divisors is an integer number (3110700).

Almost surely, 2^12380387 is an apocalyptic number.

12380387 is a deficient number, since it is larger than the sum of its proper divisors (62413).

12380387 is an equidigital number, since it uses as much as digits as its factorization.

12380387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62412.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 12380387 is about 3518.5774113980. The cubic root of 12380387 is about 231.3368087042.

It can be divided in two parts, 12380 and 387, that multiplied together give a triangular number (4791060 = T₃₀₉₅).

The spelling of 12380387 in words is "twelve million, three hundred eighty thousand, three hundred eighty-seven".