12847420 has 24 divisors (see below), whose sum is σ = 28400400. Its totient is φ = 4868352.

The previous prime is 12847397. The next prime is 12847433. The reversal of 12847420 is 2474821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16525 + ... + 17284.

It is an arithmetic number, because the mean of its divisors is an integer number (1183350).

Almost surely, 2^12847420 is an apocalyptic number.

12847420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12847420 is an abundant number, since it is smaller than the sum of its proper divisors (15552980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12847420 is a wasteful number, since it uses less digits than its factorization.

12847420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33837 (or 33835 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 12847420 is about 3584.3297839345. The cubic root of 12847420 is about 234.2099316525.

The spelling of 12847420 in words is "twelve million, eight hundred forty-seven thousand, four hundred twenty".