12977361 has 32 divisors (see below), whose sum is σ = 20764800. Its totient is φ = 7983360.

The previous prime is 12977353. The next prime is 12977369. The reversal of 12977361 is 16377921.

It is a happy number.

12977361 is a `hidden beast` number, since 1 + 297 + 7 + 361 = 666.

It is an interprime number because it is at equal distance from previous prime (12977353) and next prime (12977369).

It is not a de Polignac number, because 12977361 - 2³ = 12977353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12977369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20725 + ... + 21341.

It is an arithmetic number, because the mean of its divisors is an integer number (648900).

Almost surely, 2^12977361 is an apocalyptic number.

It is an amenable number.

12977361 is a deficient number, since it is larger than the sum of its proper divisors (7787439).

12977361 is a wasteful number, since it uses less digits than its factorization.

12977361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 680 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 12977361 is about 3602.4104430228. The cubic root of 12977361 is about 234.9968974994.

The spelling of 12977361 in words is "twelve million, nine hundred seventy-seven thousand, three hundred sixty-one".