12709072 has 20 divisors (see below), whose sum is σ = 25043040. Its totient is φ = 6246368.

The previous prime is 12709063. The next prime is 12709091. The reversal of 12709072 is 27090721.

It is a happy number.

It is a super-2 number, since 2×12709072² = 323041022202368, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12709072.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5788 + ... + 7675.

It is an arithmetic number, because the mean of its divisors is an integer number (1252152).

Almost surely, 2^12709072 is an apocalyptic number.

It is an amenable number.

12709072 is a deficient number, since it is larger than the sum of its proper divisors (12333968).

12709072 is a wasteful number, since it uses less digits than its factorization.

12709072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13530 (or 13524 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 12709072 is about 3564.9785413099. The cubic root of 12709072 is about 233.3661958250.

Adding to 12709072 its reverse (27090721), we get a palindrome (39799793).

The spelling of 12709072 in words is "twelve million, seven hundred nine thousand, seventy-two".