12381677 has 12 divisors (see below), whose sum is σ = 15475488. Its totient is φ = 9624000.

The previous prime is 12381641. The next prime is 12381689. The reversal of 12381677 is 77618321.

It is not a de Polignac number, because 12381677 - 2¹⁰ = 12380653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30677 + ... + 31077.

It is an arithmetic number, because the mean of its divisors is an integer number (1289624).

Almost surely, 2^12381677 is an apocalyptic number.

It is an amenable number.

12381677 is a deficient number, since it is larger than the sum of its proper divisors (3093811).

12381677 is an frugal number, since it uses more digits than its factorization.

12381677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 419 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 12381677 is about 3518.7607193442. The cubic root of 12381677 is about 231.3448432974.

Adding to 12381677 its reverse (77618321), we get a palindrome (89999998).

The spelling of 12381677 in words is "twelve million, three hundred eighty-one thousand, six hundred seventy-seven".