12493656 has 64 divisors (see below), whose sum is σ = 39667200. Its totient is φ = 3569184.

The previous prime is 12493639. The next prime is 12493667. The reversal of 12493656 is 65639421.

It is a happy number.

12493656 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12493656.

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 15 ways as a sum of consecutive naturals, for example, 2620 + ... + 5643.

It is an arithmetic number, because the mean of its divisors is an integer number (619800).

Almost surely, 2^12493656 is an apocalyptic number.

It is an amenable number.

12493656 is an abundant number, since it is smaller than the sum of its proper divisors (27173544).

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

12493656 is a wasteful number, since it uses less digits than its factorization.

12493656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8285 (or 8275 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 12493656 is about 3534.6366149860. The cubic root of 12493656 is about 232.0401733840.

The spelling of 12493656 in words is "twelve million, four hundred ninety-three thousand, six hundred fifty-six".