12739288 has 8 divisors (see below), whose sum is σ = 23886180. Its totient is φ = 6369640.

The previous prime is 12739271. The next prime is 12739289. The reversal of 12739288 is 88293721.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12739288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12739289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 796198 + ... + 796213.

Almost surely, 2^12739288 is an apocalyptic number.

It is an amenable number.

12739288 is a deficient number, since it is larger than the sum of its proper divisors (11146892).

12739288 is a wasteful number, since it uses less digits than its factorization.

12739288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592417 (or 1592413 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 12739288 is about 3569.2139190584. The cubic root of 12739288 is about 233.5509932694.

The spelling of 12739288 in words is "twelve million, seven hundred thirty-nine thousand, two hundred eighty-eight".