6697161 has 20 divisors (see below), whose sum is σ = 10127700. Its totient is φ = 4409856.

The previous prime is 6697157. The next prime is 6697169. The reversal of 6697161 is 1617966.

It can be written as a sum of positive squares in 2 ways, for example, as 571536 + 6125625 = 756^2 + 2475^2 .

It is not a de Polignac number, because 6697161 - 2² = 6697157 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6697169) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6745 + ... + 7673.

It is an arithmetic number, because the mean of its divisors is an integer number (506385).

Almost surely, 2^6697161 is an apocalyptic number.

It is an amenable number.

6697161 is a deficient number, since it is larger than the sum of its proper divisors (3430539).

6697161 is an equidigital number, since it uses as much as digits as its factorization.

6697161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1021 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 6697161 is about 2587.8873623093. The cubic root of 6697161 is about 188.4937320114.

The spelling of 6697161 in words is "six million, six hundred ninety-seven thousand, one hundred sixty-one".