10020085 has 4 divisors (see below), whose sum is σ = 12024108. Its totient is φ = 8016064.

The previous prime is 10020079. The next prime is 10020097. The reversal of 10020085 is 58002001.

It is a happy number.

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 4231249 + 5788836 = 2057^2 + 2406^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020085 - 2⁷ = 10019957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002004 + ... + 1002013.

It is an arithmetic number, because the mean of its divisors is an integer number (3006027).

Almost surely, 2^10020085 is an apocalyptic number.

It is an amenable number.

10020085 is a deficient number, since it is larger than the sum of its proper divisors (2004023).

10020085 is an equidigital number, since it uses as much as digits as its factorization.

10020085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004022.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 10020085 is about 3165.4517845009. The cubic root of 10020085 is about 215.5876119450.

Adding to 10020085 its reverse (58002001), we get a palindrome (68022086).

The spelling of 10020085 in words is "ten million, twenty thousand, eighty-five".