12923429 has 4 divisors (see below), whose sum is σ = 13116384. Its totient is φ = 12730476.

The previous prime is 12923387. The next prime is 12923453. The reversal of 12923429 is 92432921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12923429 - 2¹⁶ = 12857893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12923395 and 12923404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12923479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96377 + ... + 96510.

It is an arithmetic number, because the mean of its divisors is an integer number (3279096).

Almost surely, 2^12923429 is an apocalyptic number.

It is an amenable number.

12923429 is a deficient number, since it is larger than the sum of its proper divisors (192955).

12923429 is an equidigital number, since it uses as much as digits as its factorization.

12923429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192954.

The product of its digits is 7776, while the sum is 32.

The square root of 12923429 is about 3594.9171061375. The cubic root of 12923429 is about 234.6709080009.

The spelling of 12923429 in words is "twelve million, nine hundred twenty-three thousand, four hundred twenty-nine".