6823982987 has 4 divisors (see below), whose sum is σ = 6917462280. Its totient is φ = 6730503696.

The previous prime is 6823982983. The next prime is 6823982993. The reversal of 6823982987 is 7892893286.

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

It is a cyclic number.

It is not a de Polignac number, because 6823982987 - 2² = 6823982983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6823982983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46739537 + ... + 46739682.

It is an arithmetic number, because the mean of its divisors is an integer number (1729365570).

Almost surely, 2^6823982987 is an apocalyptic number.

6823982987 is a deficient number, since it is larger than the sum of its proper divisors (93479293).

6823982987 is an equidigital number, since it uses as much as digits as its factorization.

6823982987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93479292.

The product of its digits is 20901888, while the sum is 62.

The square root of 6823982987 is about 82607.4027372850. The cubic root of 6823982987 is about 1896.7611474636.

The spelling of 6823982987 in words is "six billion, eight hundred twenty-three million, nine hundred eighty-two thousand, nine hundred eighty-seven".