6697313321 has 4 divisors (see below), whose sum is σ = 6712569600. Its totient is φ = 6682057044.

The previous prime is 6697313317. The next prime is 6697313369. The reversal of 6697313321 is 1233137966.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6697313321 - 2² = 6697313317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6697313921) 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, 7627481 + ... + 7628358.

It is an arithmetic number, because the mean of its divisors is an integer number (1678142400).

Almost surely, 2^6697313321 is an apocalyptic number.

It is an amenable number.

6697313321 is a deficient number, since it is larger than the sum of its proper divisors (15256279).

6697313321 is a wasteful number, since it uses less digits than its factorization.

6697313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256278.

The product of its digits is 122472, while the sum is 41.

The square root of 6697313321 is about 81837.1145691244. The cubic root of 6697313321 is about 1884.9516104158.

The spelling of 6697313321 in words is "six billion, six hundred ninety-seven million, three hundred thirteen thousand, three hundred twenty-one".