6997997996 has 36 divisors (see below), whose sum is σ = 14100002280. Its totient is φ = 3013485120.

The previous prime is 6997997959. The next prime is 6997998013.

It is a happy number.

6997997996 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6997997996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204401 + ... + 236168.

It is an arithmetic number, because the mean of its divisors is an integer number (391666730).

Almost surely, 2^6997997996 is an apocalyptic number.

It is an amenable number.

6997997996 is an abundant number, since it is smaller than the sum of its proper divisors (7102004284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6997997996 is a wasteful number, since it uses less digits than its factorization.

6997997996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440622 (or 440601 counting only the distinct ones).

The product of its digits is 937461924, while the sum is 80.

The square root of 6997997996 is about 83654.0375355547. The cubic root of 6997997996 is about 1912.7487989135.

The spelling of 6997997996 in words is "six billion, nine hundred ninety-seven million, nine hundred ninety-seven thousand, nine hundred ninety-six".