12345387 has 16 divisors (see below), whose sum is σ = 17448480. Its totient is φ = 7750400.

The previous prime is 12345379. The next prime is 12345397. The reversal of 12345387 is 78354321.

It is a cyclic number.

It is not a de Polignac number, because 12345387 - 2³ = 12345379 is a prime.

It is a super-3 number, since 3×12345387³ (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

12345387 is a modest number, since divided by 45387 gives 123 as remainder.

It is not an unprimeable number, because it can be changed into a prime (12345317) 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 15 ways as a sum of consecutive naturals, for example, 1837 + ... + 5297.

It is an arithmetic number, because the mean of its divisors is an integer number (1090530).

Almost surely, 2^12345387 is an apocalyptic number.

12345387 is a deficient number, since it is larger than the sum of its proper divisors (5103093).

12345387 is a wasteful number, since it uses less digits than its factorization.

12345387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534.

The product of its digits is 20160, while the sum is 33.

The square root of 12345387 is about 3513.6002903005. The cubic root of 12345387 is about 231.1186025387.

The spelling of 12345387 in words is "twelve million, three hundred forty-five thousand, three hundred eighty-seven".