490000859 has 2 divisors, whose sum is σ = 490000860. Its totient is φ = 490000858.

The previous prime is 490000853. The next prime is 490000873. The reversal of 490000859 is 958000094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490000859 - 2¹⁶ = 489935323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (490000853) 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, 245000429 + 245000430.

It is an arithmetic number, because the mean of its divisors is an integer number (245000430).

Almost surely, 2^490000859 is an apocalyptic number.

490000859 is a deficient number, since it is larger than the sum of its proper divisors (1).

490000859 is an equidigital number, since it uses as much as digits as its factorization.

490000859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 490000859 is about 22135.9630240024. The cubic root of 490000859 is about 788.3739769993.

It can be divided in two parts, 49000085 and 9, that added together give a palindrome (49000094).

The spelling of 490000859 in words is "four hundred ninety million, eight hundred fifty-nine", and thus it is an aban number.