908197 has 2 divisors, whose sum is σ = 908198. Its totient is φ = 908196.

The previous prime is 908183. The next prime is 908213. The reversal of 908197 is 791809.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 784996 + 123201 = 886^2 + 351^2 .

It is a cyclic number.

It is not a de Polignac number, because 908197 - 2¹⁵ = 875429 is a prime.

It is an Ulam number.

908197 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (908137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454098 + 454099.

It is an arithmetic number, because the mean of its divisors is an integer number (454099).

2⁹⁰⁸¹⁹⁷ is an apocalyptic number.

It is an amenable number.

908197 is a deficient number, since it is larger than the sum of its proper divisors (1).

908197 is an equidigital number, since it uses as much as digits as its factorization.

908197 is an odious number, because the sum of its binary digits is odd.

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

The square root of 908197 is about 952.9937040715. The cubic root of 908197 is about 96.8411684847.

The spelling of 908197 in words is "nine hundred eight thousand, one hundred ninety-seven".