12621936 has 20 divisors (see below), whose sum is σ = 32606792. Its totient is φ = 4207296.

The previous prime is 12621923. The next prime is 12621941. The reversal of 12621936 is 63912621.

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, 131431 + ... + 131526.

Almost surely, 2^12621936 is an apocalyptic number.

12621936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12621936 is an abundant number, since it is smaller than the sum of its proper divisors (19984856).

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

12621936 is a wasteful number, since it uses less digits than its factorization.

12621936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262968 (or 262962 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 12621936 is about 3552.7364101492. The cubic root of 12621936 is about 232.8316368006.

The spelling of 12621936 in words is "twelve million, six hundred twenty-one thousand, nine hundred thirty-six".