12387322 has 8 divisors (see below), whose sum is σ = 19674036. Its totient is φ = 5829312.

The previous prime is 12387313. The next prime is 12387329. The reversal of 12387322 is 22378321.

It can be written as a sum of positive squares in 2 ways, for example, as 12257001 + 130321 = 3501^2 + 361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12387329) 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, 182133 + ... + 182200.

Almost surely, 2^12387322 is an apocalyptic number.

12387322 is a deficient number, since it is larger than the sum of its proper divisors (7286714).

12387322 is a wasteful number, since it uses less digits than its factorization.

12387322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364352.

The product of its digits is 4032, while the sum is 28.

The square root of 12387322 is about 3519.5627569344. The cubic root of 12387322 is about 231.3799958653.

Subtracting 12387322 from its reverse (22378321), we obtain a palindrome (9990999).

The spelling of 12387322 in words is "twelve million, three hundred eighty-seven thousand, three hundred twenty-two".