12999477 has 8 divisors (see below), whose sum is σ = 18244960. Its totient is φ = 8210160.

The previous prime is 12999473. The next prime is 12999479. The reversal of 12999477 is 77499921.

It is a happy number.

12999477 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12999477 - 2² = 12999473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999473) 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 7 ways as a sum of consecutive naturals, for example, 113974 + ... + 114087.

It is an arithmetic number, because the mean of its divisors is an integer number (2280620).

Almost surely, 2^12999477 is an apocalyptic number.

It is an amenable number.

12999477 is a deficient number, since it is larger than the sum of its proper divisors (5245483).

12999477 is a wasteful number, since it uses less digits than its factorization.

12999477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228083.

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

The square root of 12999477 is about 3605.4787476839. The cubic root of 12999477 is about 235.1303155297.

The spelling of 12999477 in words is "twelve million, nine hundred ninety-nine thousand, four hundred seventy-seven".