10485781 has 4 divisors (see below), whose sum is σ = 10824064. Its totient is φ = 10147500.

The previous prime is 10485779. The next prime is 10485817. The reversal of 10485781 is 18758401.

10485781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10485781 - 2¹ = 10485779 is a prime.

It is a super-2 number, since 2×10485781² = 219903206359922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10485721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169095 + ... + 169156.

It is an arithmetic number, because the mean of its divisors is an integer number (2706016).

Almost surely, 2^10485781 is an apocalyptic number.

It is an amenable number.

10485781 is a deficient number, since it is larger than the sum of its proper divisors (338283).

10485781 is an equidigital number, since it uses as much as digits as its factorization.

10485781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338282.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 10485781 is about 3238.1755665807. The cubic root of 10485781 is about 218.8770672906.

The spelling of 10485781 in words is "ten million, four hundred eighty-five thousand, seven hundred eighty-one".