490044197 has 2 divisors, whose sum is σ = 490044198. Its totient is φ = 490044196.

The previous prime is 490044179. The next prime is 490044239. The reversal of 490044197 is 791440094.

Together with previous prime (490044179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420004036 + 70040161 = 20494^2 + 8369^2 .

It is a cyclic number.

It is not a de Polignac number, because 490044197 - 2⁸ = 490043941 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 490044197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490044127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245022098 + 245022099.

It is an arithmetic number, because the mean of its divisors is an integer number (245022099).

Almost surely, 2^490044197 is an apocalyptic number.

It is an amenable number.

490044197 is a deficient number, since it is larger than the sum of its proper divisors (1).

490044197 is an equidigital number, since it uses as much as digits as its factorization.

490044197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 490044197 is about 22136.9419071379. The cubic root of 490044197 is about 788.3972188253.

The spelling of 490044197 in words is "four hundred ninety million, forty-four thousand, one hundred ninety-seven".