6997397 has 8 divisors (see below), whose sum is σ = 7653312. Its totient is φ = 6344800.

The previous prime is 6997379. The next prime is 6997411. The reversal of 6997397 is 7937996.

It is a happy number.

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

It is not a de Polignac number, because 6997397 - 2²⁰ = 5948821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997307) 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, 6272 + ... + 7302.

It is an arithmetic number, because the mean of its divisors is an integer number (956664).

Almost surely, 2^6997397 is an apocalyptic number.

It is an amenable number.

6997397 is a deficient number, since it is larger than the sum of its proper divisors (655915).

6997397 is a wasteful number, since it uses less digits than its factorization.

6997397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659.

The product of its digits is 642978, while the sum is 50.

The square root of 6997397 is about 2645.2593445634. The cubic root of 6997397 is about 191.2694041001.

The spelling of 6997397 in words is "six million, nine hundred ninety-seven thousand, three hundred ninety-seven".