12277982 has 4 divisors (see below), whose sum is σ = 18416976. Its totient is φ = 6138990.

The previous prime is 12277981. The next prime is 12278003. The reversal of 12277982 is 28977221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3069494 + ... + 3069497.

It is an arithmetic number, because the mean of its divisors is an integer number (4604244).

Almost surely, 2^12277982 is an apocalyptic number.

12277982 is a deficient number, since it is larger than the sum of its proper divisors (6138994).

12277982 is an equidigital number, since it uses as much as digits as its factorization.

12277982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6138993.

The product of its digits is 28224, while the sum is 38.

The square root of 12277982 is about 3503.9951483985. The cubic root of 12277982 is about 230.6972038862.

The spelling of 12277982 in words is "twelve million, two hundred seventy-seven thousand, nine hundred eighty-two".