6911997 has 4 divisors (see below), whose sum is σ = 9216000. Its totient is φ = 4607996.

The previous prime is 6911987. The next prime is 6912011. The reversal of 6911997 is 7991196.

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 6911997 - 2¹⁰ = 6910973 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6911917) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1151997 + ... + 1152002.

It is an arithmetic number, because the mean of its divisors is an integer number (2304000).

Almost surely, 2^6911997 is an apocalyptic number.

It is an amenable number.

6911997 is a deficient number, since it is larger than the sum of its proper divisors (2304003).

6911997 is a wasteful number, since it uses less digits than its factorization.

6911997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304002.

The product of its digits is 30618, while the sum is 42.

The square root of 6911997 is about 2629.0677054804. The cubic root of 6911997 is about 190.4880986771.

The spelling of 6911997 in words is "six million, nine hundred eleven thousand, nine hundred ninety-seven".