12931836 has 24 divisors (see below), whose sum is σ = 31148544. Its totient is φ = 4171440.

The previous prime is 12931829. The next prime is 12931843. The reversal of 12931836 is 63813921.

It is an interprime number because it is at equal distance from previous prime (12931829) and next prime (12931843).

It is a junction number, because it is equal to n+sod(n) for n = 12931797 and 12931806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17010 + ... + 17753.

It is an arithmetic number, because the mean of its divisors is an integer number (1297856).

Almost surely, 2^12931836 is an apocalyptic number.

It is an amenable number.

12931836 is an abundant number, since it is smaller than the sum of its proper divisors (18216708).

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

12931836 is a wasteful number, since it uses less digits than its factorization.

12931836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34801 (or 34799 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 12931836 is about 3596.0862058633. The cubic root of 12931836 is about 234.7217833188.

The spelling of 12931836 in words is "twelve million, nine hundred thirty-one thousand, eight hundred thirty-six".