8090197 has 2 divisors, whose sum is σ = 8090198. Its totient is φ = 8090196.

The previous prime is 8090171. The next prime is 8090209. The reversal of 8090197 is 7910908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8059921 + 30276 = 2839^2 + 174^2 .

It is a cyclic number.

It is not a de Polignac number, because 8090197 - 2¹¹ = 8088149 is a prime.

8090197 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8090107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4045098 + 4045099.

It is an arithmetic number, because the mean of its divisors is an integer number (4045099).

Almost surely, 2^8090197 is an apocalyptic number.

It is an amenable number.

8090197 is a deficient number, since it is larger than the sum of its proper divisors (1).

8090197 is an equidigital number, since it uses as much as digits as its factorization.

8090197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 8090197 is about 2844.3271612105. The cubic root of 8090197 is about 200.7488344026.

The spelling of 8090197 in words is "eight million, ninety thousand, one hundred ninety-seven".