12977499 has 16 divisors (see below), whose sum is σ = 18247680. Its totient is φ = 8191680.

The previous prime is 12977479. The next prime is 12977501. The reversal of 12977499 is 99477921.

It is a happy number.

It is not a de Polignac number, because 12977499 - 2⁵ = 12977467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12977449) 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, 2887 + ... + 5855.

It is an arithmetic number, because the mean of its divisors is an integer number (1140480).

Almost surely, 2^12977499 is an apocalyptic number.

12977499 is a deficient number, since it is larger than the sum of its proper divisors (5270181).

12977499 is a wasteful number, since it uses less digits than its factorization.

12977499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050.

The product of its digits is 285768, while the sum is 48.

The square root of 12977499 is about 3602.4295968138. The cubic root of 12977499 is about 234.9977304745.

The spelling of 12977499 in words is "twelve million, nine hundred seventy-seven thousand, four hundred ninety-nine".