12493784 has 16 divisors (see below), whose sum is σ = 24444720. Its totient is φ = 5975200.

The previous prime is 12493783. The next prime is 12493829. The reversal of 12493784 is 48739421.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12493783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33767 + ... + 34134.

It is an arithmetic number, because the mean of its divisors is an integer number (1527795).

Almost surely, 2^12493784 is an apocalyptic number.

It is an amenable number.

12493784 is a deficient number, since it is larger than the sum of its proper divisors (11950936).

12493784 is a wasteful number, since it uses less digits than its factorization.

12493784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67930 (or 67926 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 12493784 is about 3534.6547214686. The cubic root of 12493784 is about 232.0409658139.

The spelling of 12493784 in words is "twelve million, four hundred ninety-three thousand, seven hundred eighty-four".