6899197 has 4 divisors (see below), whose sum is σ = 6937920. Its totient is φ = 6860476.

The previous prime is 6899117. The next prime is 6899201. The reversal of 6899197 is 7919986.

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 6899197 - 2⁷ = 6899069 is a prime.

It is a Duffinian number.

6899197 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6899197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6899117) 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, 19093 + ... + 19450.

It is an arithmetic number, because the mean of its divisors is an integer number (1734480).

Almost surely, 2^6899197 is an apocalyptic number.

It is an amenable number.

6899197 is a deficient number, since it is larger than the sum of its proper divisors (38723).

6899197 is a wasteful number, since it uses less digits than its factorization.

6899197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38722.

The product of its digits is 244944, while the sum is 49.

The square root of 6899197 is about 2626.6322544277. The cubic root of 6899197 is about 190.3704407217.

The spelling of 6899197 in words is "six million, eight hundred ninety-nine thousand, one hundred ninety-seven".