12288709 has 8 divisors (see below), whose sum is σ = 12452832. Its totient is φ = 12126000.

The previous prime is 12288707. The next prime is 12288737. The reversal of 12288709 is 90788221.

12288709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12288709 - 2¹ = 12288707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12288701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43282 + ... + 43564.

It is an arithmetic number, because the mean of its divisors is an integer number (1556604).

Almost surely, 2^12288709 is an apocalyptic number.

It is an amenable number.

12288709 is a deficient number, since it is larger than the sum of its proper divisors (164123).

12288709 is a wasteful number, since it uses less digits than its factorization.

12288709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 12288709 is about 3505.5254955570. The cubic root of 12288709 is about 230.7643693363.

It can be divided in two parts, 122 and 88709, that added together give a triangular number (88831 = T₄₂₁).

The spelling of 12288709 in words is "twelve million, two hundred eighty-eight thousand, seven hundred nine".