6997331 has 8 divisors (see below), whose sum is σ = 7679664. Its totient is φ = 6322720.

The previous prime is 6997327. The next prime is 6997343. The reversal of 6997331 is 1337996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6997331 - 2² = 6997327 is a prime.

It is a super-2 number, since 2×6997331² = 97925282247122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6997321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65 + ... + 3741.

It is an arithmetic number, because the mean of its divisors is an integer number (959958).

Almost surely, 2^6997331 is an apocalyptic number.

6997331 is a deficient number, since it is larger than the sum of its proper divisors (682333).

6997331 is a wasteful number, since it uses less digits than its factorization.

6997331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861.

The product of its digits is 30618, while the sum is 38.

The square root of 6997331 is about 2645.2468693867. The cubic root of 6997331 is about 191.2688027422.

The spelling of 6997331 in words is "six million, nine hundred ninety-seven thousand, three hundred thirty-one".