12387349 has 4 divisors (see below), whose sum is σ = 13340236. Its totient is φ = 11434464.

The previous prime is 12387343. The next prime is 12387359. The reversal of 12387349 is 94378321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2102500 + 10284849 = 1450^2 + 3207^2 .

It is a cyclic number.

It is not a de Polignac number, because 12387349 - 2²³ = 3998741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387343) 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, 476424 + ... + 476449.

It is an arithmetic number, because the mean of its divisors is an integer number (3335059).

Almost surely, 2^12387349 is an apocalyptic number.

It is an amenable number.

12387349 is a deficient number, since it is larger than the sum of its proper divisors (952887).

12387349 is an equidigital number, since it uses as much as digits as its factorization.

12387349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952886.

The product of its digits is 36288, while the sum is 37.

The square root of 12387349 is about 3519.5665926361. The cubic root of 12387349 is about 231.3801639742.

The spelling of 12387349 in words is "twelve million, three hundred eighty-seven thousand, three hundred forty-nine".