10724561 has 4 divisors (see below), whose sum is σ = 11014452. Its totient is φ = 10434672.

The previous prime is 10724557. The next prime is 10724579. The reversal of 10724561 is 16542701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6076225 + 4648336 = 2465^2 + 2156^2 .

It is a cyclic number.

It is not a de Polignac number, because 10724561 - 2² = 10724557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10724561.

It is not an unprimeable number, because it can be changed into a prime (10724521) by changing a digit.

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, 144890 + ... + 144963.

It is an arithmetic number, because the mean of its divisors is an integer number (2753613).

Almost surely, 2^10724561 is an apocalyptic number.

It is an amenable number.

10724561 is a deficient number, since it is larger than the sum of its proper divisors (289891).

10724561 is an equidigital number, since it uses as much as digits as its factorization.

10724561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289890.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 10724561 is about 3274.8375532231. The cubic root of 10724561 is about 220.5260208938.

The spelling of 10724561 in words is "ten million, seven hundred twenty-four thousand, five hundred sixty-one".