12763387 has 12 divisors (see below), whose sum is σ = 15796560. Its totient is φ = 10097568.

The previous prime is 12763381. The next prime is 12763403. The reversal of 12763387 is 78336721.

12763387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12763387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12763381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4212 + ... + 6577.

It is an arithmetic number, because the mean of its divisors is an integer number (1316380).

Almost surely, 2^12763387 is an apocalyptic number.

12763387 is a deficient number, since it is larger than the sum of its proper divisors (3033173).

12763387 is a wasteful number, since it uses less digits than its factorization.

12763387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822 (or 10809 counting only the distinct ones).

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

The square root of 12763387 is about 3572.5882774258. The cubic root of 12763387 is about 233.6981705175.

The spelling of 12763387 in words is "twelve million, seven hundred sixty-three thousand, three hundred eighty-seven".