2690197 has 2 divisors, whose sum is σ = 2690198. Its totient is φ = 2690196.

The previous prime is 2690179. The next prime is 2690201. The reversal of 2690197 is 7910962.

Together with previous prime (2690179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2114116 + 576081 = 1454^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 2690197 - 2¹⁵ = 2657429 is a prime.

2690197 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2690137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345098 + 1345099.

It is an arithmetic number, because the mean of its divisors is an integer number (1345099).

2^2690197 is an apocalyptic number.

It is an amenable number.

2690197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690197 is an equidigital number, since it uses as much as digits as its factorization.

2690197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 2690197 is about 1640.1820020961. The cubic root of 2690197 is about 139.0789365835.

The spelling of 2690197 in words is "two million, six hundred ninety thousand, one hundred ninety-seven".