12832905 has 8 divisors (see below), whose sum is σ = 20532672. Its totient is φ = 6844208.

The previous prime is 12832903. The next prime is 12832921. The reversal of 12832905 is 50923821.

It is a happy number.

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 12832905 - 2¹ = 12832903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12832901) 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, 427749 + ... + 427778.

It is an arithmetic number, because the mean of its divisors is an integer number (2566584).

Almost surely, 2^12832905 is an apocalyptic number.

12832905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12832905 is a deficient number, since it is larger than the sum of its proper divisors (7699767).

12832905 is an equidigital number, since it uses as much as digits as its factorization.

12832905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855535.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12832905 is about 3582.3044259247. The cubic root of 12832905 is about 234.1216950459.

It can be divided in two parts, 128 and 32905, that added together give a palindrome (33033).

The spelling of 12832905 in words is "twelve million, eight hundred thirty-two thousand, nine hundred five".