6823663285 has 4 divisors (see below), whose sum is σ = 8188395948. Its totient is φ = 5458930624.

The previous prime is 6823663279. The next prime is 6823663291. The reversal of 6823663285 is 5823663286.

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 (6823663279) and next prime (6823663291).

It can be written as a sum of positive squares in 2 ways, for example, as 4237228836 + 2586434449 = 65094^2 + 50857^2 .

It is a cyclic number.

It is not a de Polignac number, because 6823663285 - 2³ = 6823663277 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682366324 + ... + 682366333.

It is an arithmetic number, because the mean of its divisors is an integer number (2047098987).

Almost surely, 2^6823663285 is an apocalyptic number.

It is an amenable number.

6823663285 is a deficient number, since it is larger than the sum of its proper divisors (1364732663).

6823663285 is a wasteful number, since it uses less digits than its factorization.

6823663285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364732662.

The product of its digits is 2488320, while the sum is 49.

The square root of 6823663285 is about 82605.4676459131. The cubic root of 6823663285 is about 1896.7315260630.

Subtracting from 6823663285 its reverse (5823663286), we obtain a palindrome (999999999).

The spelling of 6823663285 in words is "six billion, eight hundred twenty-three million, six hundred sixty-three thousand, two hundred eighty-five".