12499977 has 16 divisors (see below), whose sum is σ = 19235840. Its totient is φ = 7072272.

The previous prime is 12499919. The next prime is 12499987. The reversal of 12499977 is 77999421.

It is a happy number.

12499977 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12499977 - 2¹⁰ = 12498953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12499987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727 + ... + 5052.

It is an arithmetic number, because the mean of its divisors is an integer number (1202240).

Almost surely, 2^12499977 is an apocalyptic number.

It is an amenable number.

12499977 is a deficient number, since it is larger than the sum of its proper divisors (6735863).

12499977 is a wasteful number, since it uses less digits than its factorization.

12499977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892.

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

The square root of 12499977 is about 3535.5306532400. The cubic root of 12499977 is about 232.0792993385.

The spelling of 12499977 in words is "twelve million, four hundred ninety-nine thousand, nine hundred seventy-seven".