6658197 has 32 divisors (see below), whose sum is σ = 11316480. Its totient is φ = 3390912.

The previous prime is 6658193. The next prime is 6658243. The reversal of 6658197 is 7918566.

It is not a de Polignac number, because 6658197 - 2² = 6658193 is a prime.

6658197 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6658193) 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 31 ways as a sum of consecutive naturals, for example, 229579 + ... + 229607.

It is an arithmetic number, because the mean of its divisors is an integer number (353640).

Almost surely, 2^6658197 is an apocalyptic number.

It is an amenable number.

6658197 is a deficient number, since it is larger than the sum of its proper divisors (4658283).

6658197 is an equidigital number, since it uses as much as digits as its factorization.

6658197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 52 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 6658197 is about 2580.3482323128. The cubic root of 6658197 is about 188.1274693848.

The spelling of 6658197 in words is "six million, six hundred fifty-eight thousand, one hundred ninety-seven".