12638773 has 8 divisors (see below), whose sum is σ = 14681600. Its totient is φ = 10655280.

The previous prime is 12638771. The next prime is 12638777. The reversal of 12638773 is 37783621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12638773 - 2¹ = 12638771 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 (12638771) 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 7 ways as a sum of consecutive naturals, for example, 14373 + ... + 15226.

It is an arithmetic number, because the mean of its divisors is an integer number (1835200).

Almost surely, 2^12638773 is an apocalyptic number.

It is an amenable number.

12638773 is a deficient number, since it is larger than the sum of its proper divisors (2042827).

12638773 is an equidigital number, since it uses as much as digits as its factorization.

12638773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29667.

The product of its digits is 42336, while the sum is 37.

The square root of 12638773 is about 3555.1052023815. The cubic root of 12638773 is about 232.9351191943.

The spelling of 12638773 in words is "twelve million, six hundred thirty-eight thousand, seven hundred seventy-three".