12722765 has 8 divisors (see below), whose sum is σ = 16655328. Its totient is φ = 9252880.

The previous prime is 12722747. The next prime is 12722767. The reversal of 12722765 is 56722721.

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

It is not a de Polignac number, because 12722765 - 2⁸ = 12722509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722767) 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, 115607 + ... + 115716.

It is an arithmetic number, because the mean of its divisors is an integer number (2081916).

Almost surely, 2^12722765 is an apocalyptic number.

It is an amenable number.

12722765 is a deficient number, since it is larger than the sum of its proper divisors (3932563).

12722765 is a wasteful number, since it uses less digits than its factorization.

12722765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231339.

The product of its digits is 11760, while the sum is 32.

The square root of 12722765 is about 3566.8985127138. The cubic root of 12722765 is about 233.4499768275.

The spelling of 12722765 in words is "twelve million, seven hundred twenty-two thousand, seven hundred sixty-five".