12289982 has 4 divisors (see below), whose sum is σ = 18434976. Its totient is φ = 6144990.

The previous prime is 12289943. The next prime is 12289999. The reversal of 12289982 is 28998221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3072494 + ... + 3072497.

It is an arithmetic number, because the mean of its divisors is an integer number (4608744).

Almost surely, 2^12289982 is an apocalyptic number.

12289982 is a deficient number, since it is larger than the sum of its proper divisors (6144994).

12289982 is an equidigital number, since it uses as much as digits as its factorization.

12289982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6144993.

The product of its digits is 41472, while the sum is 41.

The square root of 12289982 is about 3505.7070613501. The cubic root of 12289982 is about 230.7723374340.

The spelling of 12289982 in words is "twelve million, two hundred eighty-nine thousand, nine hundred eighty-two".