10006855 has 4 divisors (see below), whose sum is σ = 12008232. Its totient is φ = 8005480.

The previous prime is 10006849. The next prime is 10006861. The reversal of 10006855 is 55860001.

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

It is an interprime number because it is at equal distance from previous prime (10006849) and next prime (10006861).

It is not a de Polignac number, because 10006855 - 2⁵ = 10006823 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000681 + ... + 1000690.

It is an arithmetic number, because the mean of its divisors is an integer number (3002058).

Almost surely, 2^10006855 is an apocalyptic number.

10006855 is a deficient number, since it is larger than the sum of its proper divisors (2001377).

10006855 is an equidigital number, since it uses as much as digits as its factorization.

10006855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001376.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 10006855 is about 3163.3613451517. The cubic root of 10006855 is about 215.4926865913.

Adding to 10006855 its reverse (55860001), we get a palindrome (65866856).

The spelling of 10006855 in words is "ten million, six thousand, eight hundred fifty-five".