12712977 has 16 divisors (see below), whose sum is σ = 18910080. Its totient is φ = 8441136.

The previous prime is 12712969. The next prime is 12712979. The reversal of 12712977 is 77921721.

It is not a de Polignac number, because 12712977 - 2³ = 12712969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12712979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7108 + ... + 8714.

It is an arithmetic number, because the mean of its divisors is an integer number (1181880).

Almost surely, 2^12712977 is an apocalyptic number.

It is an amenable number.

12712977 is a deficient number, since it is larger than the sum of its proper divisors (6197103).

12712977 is a wasteful number, since it uses less digits than its factorization.

12712977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1903 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The square root of 12712977 is about 3565.5261883767. The cubic root of 12712977 is about 233.3900948077.

It can be divided in two parts, 12712 and 977, that added together give a square (13689 = 117²).

The spelling of 12712977 in words is "twelve million, seven hundred twelve thousand, nine hundred seventy-seven".