12736493 has 16 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 9870000.

The previous prime is 12736489. The next prime is 12736543. The reversal of 12736493 is 39463721.

It is not a de Polignac number, because 12736493 - 2² = 12736489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12736093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18998 + ... + 19656.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^12736493 is an apocalyptic number.

It is an amenable number.

12736493 is a deficient number, since it is larger than the sum of its proper divisors (3230227).

12736493 is a wasteful number, since it uses less digits than its factorization.

12736493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928.

The product of its digits is 27216, while the sum is 35.

The square root of 12736493 is about 3568.8223547832. The cubic root of 12736493 is about 233.5339116562.

The spelling of 12736493 in words is "twelve million, seven hundred thirty-six thousand, four hundred ninety-three".