12977072 has 10 divisors (see below), whose sum is σ = 25143108. Its totient is φ = 6488528.

The previous prime is 12977071. The next prime is 12977077. The reversal of 12977072 is 27077921.

It is not an unprimeable number, because it can be changed into a prime (12977071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405518 + ... + 405549.

Almost surely, 2^12977072 is an apocalyptic number.

It is an amenable number.

12977072 is a deficient number, since it is larger than the sum of its proper divisors (12166036).

12977072 is an equidigital number, since it uses as much as digits as its factorization.

12977072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811075 (or 811069 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 12977072 is about 3602.3703307683. The cubic root of 12977072 is about 234.9951530613.

The spelling of 12977072 in words is "twelve million, nine hundred seventy-seven thousand, seventy-two".