6997697 has 4 divisors (see below), whose sum is σ = 7997376. Its totient is φ = 5998020.

The previous prime is 6997687. The next prime is 6997733. The reversal of 6997697 is 7967996.

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 not a de Polignac number, because 6997697 - 2⁶ = 6997633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6997607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499829 + ... + 499842.

It is an arithmetic number, because the mean of its divisors is an integer number (1999344).

Almost surely, 2^6997697 is an apocalyptic number.

It is an amenable number.

6997697 is a deficient number, since it is larger than the sum of its proper divisors (999679).

6997697 is an equidigital number, since it uses as much as digits as its factorization.

6997697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999678.

The product of its digits is 1285956, while the sum is 53.

The square root of 6997697 is about 2645.3160491707. The cubic root of 6997697 is about 191.2721374975.

Subtracting 6997697 from its reverse (7967996), we obtain a cube (970299 = 99³).

The spelling of 6997697 in words is "six million, nine hundred ninety-seven thousand, six hundred ninety-seven".