12731796 has 96 divisors (see below), whose sum is σ = 41180160. Its totient is φ = 3304800.

The previous prime is 12731779. The next prime is 12731813. The reversal of 12731796 is 69713721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12731779) and next prime (12731813).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12731796.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7551 + ... + 9081.

It is an arithmetic number, because the mean of its divisors is an integer number (428960).

Almost surely, 2^12731796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12731796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20590080).

12731796 is an abundant number, since it is smaller than the sum of its proper divisors (28448364).

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

12731796 is a wasteful number, since it uses less digits than its factorization.

12731796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562 (or 1554 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 12731796 is about 3568.1642338883. The cubic root of 12731796 is about 233.5052003604.

The spelling of 12731796 in words is "twelve million, seven hundred thirty-one thousand, seven hundred ninety-six".