12977313 has 16 divisors (see below), whose sum is σ = 18640896. Its totient is φ = 8007120.

The previous prime is 12977291. The next prime is 12977317. The reversal of 12977313 is 31377921.

It is a happy number.

It is not a de Polignac number, because 12977313 - 2¹² = 12973217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12977317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 895 + ... + 5172.

It is an arithmetic number, because the mean of its divisors is an integer number (1165056).

Almost surely, 2^12977313 is an apocalyptic number.

It is an amenable number.

12977313 is a deficient number, since it is larger than the sum of its proper divisors (5663583).

12977313 is a wasteful number, since it uses less digits than its factorization.

12977313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124.

The product of its digits is 7938, while the sum is 33.

The square root of 12977313 is about 3602.4037808108. The cubic root of 12977313 is about 234.9966077675.

The spelling of 12977313 in words is "twelve million, nine hundred seventy-seven thousand, three hundred thirteen".