12834921 has 8 divisors (see below), whose sum is σ = 18669024. Its totient is φ = 7778720.

The previous prime is 12834911. The next prime is 12834929. The reversal of 12834921 is 12943821.

12834921 is digitally balanced in base 2 and base 4, because in such bases 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 a cyclic number.

It is not a de Polignac number, because 12834921 - 2⁵ = 12834889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12834929) 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, 194436 + ... + 194501.

It is an arithmetic number, because the mean of its divisors is an integer number (2333628).

Almost surely, 2^12834921 is an apocalyptic number.

12834921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12834921 is a deficient number, since it is larger than the sum of its proper divisors (5834103).

12834921 is a wasteful number, since it uses less digits than its factorization.

12834921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388951.

The product of its digits is 3456, while the sum is 30.

The square root of 12834921 is about 3582.5857979956. The cubic root of 12834921 is about 234.1339542765.

Subtracting 12834921 from its reverse (12943821), we obtain a square (108900 = 330²).

The spelling of 12834921 in words is "twelve million, eight hundred thirty-four thousand, nine hundred twenty-one".