10728581 has 8 divisors (see below), whose sum is σ = 11430720. Its totient is φ = 10034368.

The previous prime is 10728577. The next prime is 10728587. The reversal of 10728581 is 18582701.

It is a happy number.

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 10728581 - 2² = 10728577 is a prime.

It is a super-2 number, since 2×10728581² = 230204900547122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10728587) 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 7 ways as a sum of consecutive naturals, for example, 950 + ... + 4728.

It is an arithmetic number, because the mean of its divisors is an integer number (1428840).

Almost surely, 2^10728581 is an apocalyptic number.

It is an amenable number.

10728581 is a deficient number, since it is larger than the sum of its proper divisors (702139).

10728581 is a wasteful number, since it uses less digits than its factorization.

10728581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 10728581 is about 3275.4512666196. The cubic root of 10728581 is about 220.5535714811.

The spelling of 10728581 in words is "ten million, seven hundred twenty-eight thousand, five hundred eighty-one".