10220785 has 8 divisors (see below), whose sum is σ = 12496680. Its totient is φ = 8022144.

The previous prime is 10220753. The next prime is 10220797. The reversal of 10220785 is 58702201.

10220785 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2509056 + 7711729 = 1584^2 + 2777^2 .

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 10220785 - 2⁵ = 10220753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19020 + ... + 19549.

It is an arithmetic number, because the mean of its divisors is an integer number (1562085).

Almost surely, 2^10220785 is an apocalyptic number.

It is an amenable number.

10220785 is a deficient number, since it is larger than the sum of its proper divisors (2275895).

10220785 is an equidigital number, since it uses as much as digits as its factorization.

10220785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38627.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 10220785 is about 3196.9962464789. The cubic root of 10220785 is about 217.0174973680.

Adding to 10220785 its reverse (58702201), we get a palindrome (68922986).

The spelling of 10220785 in words is "ten million, two hundred twenty thousand, seven hundred eighty-five".