12613856 has 24 divisors (see below), whose sum is σ = 24920784. Its totient is φ = 6284800.

The previous prime is 12613837. The next prime is 12613871. The reversal of 12613856 is 65831621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12341 + ... + 13323.

It is an arithmetic number, because the mean of its divisors is an integer number (1038366).

Almost surely, 2^12613856 is an apocalyptic number.

12613856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12613856 is a deficient number, since it is larger than the sum of its proper divisors (12306928).

12613856 is an equidigital number, since it uses as much as digits as its factorization.

12613856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394 (or 1386 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 12613856 is about 3551.5990764725. The cubic root of 12613856 is about 232.7819433884.

The spelling of 12613856 in words is "twelve million, six hundred thirteen thousand, eight hundred fifty-six".