10768721 has 4 divisors (see below), whose sum is σ = 10875444. Its totient is φ = 10662000.

The previous prime is 10768717. The next prime is 10768799. The reversal of 10768721 is 12786701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12786701 = 101 ⋅126601.

It can be written as a sum of positive squares in 2 ways, for example, as 9388096 + 1380625 = 3064^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 10768721 - 2² = 10768717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10765721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53210 + ... + 53411.

It is an arithmetic number, because the mean of its divisors is an integer number (2718861).

Almost surely, 2^10768721 is an apocalyptic number.

It is an amenable number.

10768721 is a deficient number, since it is larger than the sum of its proper divisors (106723).

10768721 is a wasteful number, since it uses less digits than its factorization.

10768721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106722.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 10768721 is about 3281.5729460123. The cubic root of 10768721 is about 220.8282894620.

The spelling of 10768721 in words is "ten million, seven hundred sixty-eight thousand, seven hundred twenty-one".