490490089 has 2 divisors, whose sum is σ = 490490090. Its totient is φ = 490490088.

The previous prime is 490490071. The next prime is 490490107. The reversal of 490490089 is 980094094.

It is a balanced prime because it is at equal distance from previous prime (490490071) and next prime (490490107).

It can be written as a sum of positive squares in only one way, i.e., 259693225 + 230796864 = 16115^2 + 15192^2 .

It is a cyclic number.

It is not a de Polignac number, because 490490089 - 2¹³ = 490481897 is a prime.

It is not a weakly prime, because it can be changed into another prime (490490059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245245044 + 245245045.

It is an arithmetic number, because the mean of its divisors is an integer number (245245045).

Almost surely, 2^490490089 is an apocalyptic number.

It is an amenable number.

490490089 is a deficient number, since it is larger than the sum of its proper divisors (1).

490490089 is an equidigital number, since it uses as much as digits as its factorization.

490490089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 490490089 is about 22147.0108366795. The cubic root of 490490089 is about 788.6362676339.

The spelling of 490490089 in words is "four hundred ninety million, four hundred ninety thousand, eighty-nine".