12429487 has 12 divisors (see below), whose sum is σ = 14959080. Its totient is φ = 10285296.

The previous prime is 12429467. The next prime is 12429493. The reversal of 12429487 is 78492421.

It is not a de Polignac number, because 12429487 - 2⁷ = 12429359 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 (12429457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2953 + ... + 5794.

It is an arithmetic number, because the mean of its divisors is an integer number (1246590).

Almost surely, 2^12429487 is an apocalyptic number.

12429487 is a deficient number, since it is larger than the sum of its proper divisors (2529593).

12429487 is an equidigital number, since it uses as much as digits as its factorization.

12429487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8790 (or 8783 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 12429487 is about 3525.5477588596. The cubic root of 12429487 is about 231.6422287307.

The spelling of 12429487 in words is "twelve million, four hundred twenty-nine thousand, four hundred eighty-seven".