12639362 has 4 divisors (see below), whose sum is σ = 18959046. Its totient is φ = 6319680.

The previous prime is 12639359. The next prime is 12639371. The reversal of 12639362 is 26393621.

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

It can be written as a sum of positive squares in only one way, i.e., 11621281 + 1018081 = 3409^2 + 1009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3159839 + ... + 3159842.

Almost surely, 2^12639362 is an apocalyptic number.

12639362 is a deficient number, since it is larger than the sum of its proper divisors (6319684).

12639362 is an equidigital number, since it uses as much as digits as its factorization.

12639362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6319683.

The product of its digits is 11664, while the sum is 32.

The square root of 12639362 is about 3555.1880400339. The cubic root of 12639362 is about 232.9387376008.

The spelling of 12639362 in words is "twelve million, six hundred thirty-nine thousand, three hundred sixty-two".