12329421 has 8 divisors (see below), whose sum is σ = 17703840. Its totient is φ = 7587312.

The previous prime is 12329411. The next prime is 12329431. The reversal of 12329421 is 12492321.

12329421 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12329411) and next prime (12329431).

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

It is not a de Polignac number, because 12329421 - 2⁵ = 12329389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12329391 and 12329400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12329411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158031 + ... + 158108.

It is an arithmetic number, because the mean of its divisors is an integer number (2212980).

Almost surely, 2^12329421 is an apocalyptic number.

It is an amenable number.

12329421 is a deficient number, since it is larger than the sum of its proper divisors (5374419).

12329421 is a wasteful number, since it uses less digits than its factorization.

12329421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316155.

The product of its digits is 864, while the sum is 24.

The square root of 12329421 is about 3511.3275267340. The cubic root of 12329421 is about 231.0189261306.

The spelling of 12329421 in words is "twelve million, three hundred twenty-nine thousand, four hundred twenty-one".