12605983 has 16 divisors (see below), whose sum is σ = 14154336. Its totient is φ = 11151360.

The previous prime is 12605977. The next prime is 12606007. The reversal of 12605983 is 38950621.

It is a cyclic number.

It is not a de Polignac number, because 12605983 - 2¹³ = 12597791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12605903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35535 + ... + 35887.

It is an arithmetic number, because the mean of its divisors is an integer number (884646).

Almost surely, 2^12605983 is an apocalyptic number.

12605983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12605983 is a deficient number, since it is larger than the sum of its proper divisors (1548353).

12605983 is a wasteful number, since it uses less digits than its factorization.

12605983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12605983 is about 3550.4905294903. The cubic root of 12605983 is about 232.7335026455.

The spelling of 12605983 in words is "twelve million, six hundred five thousand, nine hundred eighty-three".