12499479 has 24 divisors (see below), whose sum is σ = 18929664. Its totient is φ = 7938000.

The previous prime is 12499447. The next prime is 12499481. The reversal of 12499479 is 97499421.

It is a happy number.

It is not a de Polignac number, because 12499479 - 2⁵ = 12499447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19494 + ... + 20124.

It is an arithmetic number, because the mean of its divisors is an integer number (788736).

Almost surely, 2^12499479 is an apocalyptic number.

12499479 is a deficient number, since it is larger than the sum of its proper divisors (6430185).

12499479 is a wasteful number, since it uses less digits than its factorization.

12499479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 736 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 12499479 is about 3535.4602246384. The cubic root of 12499479 is about 232.0762172788.

The spelling of 12499479 in words is "twelve million, four hundred ninety-nine thousand, four hundred seventy-nine".