490949 has 2 divisors, whose sum is σ = 490950. Its totient is φ = 490948.

The previous prime is 490937. The next prime is 490951. The reversal of 490949 is 949094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368449 + 122500 = 607^2 + 350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490949 is a prime.

Together with 490951, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490969) 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, 245474 + 245475.

It is an arithmetic number, because the mean of its divisors is an integer number (245475).

2⁴⁹⁰⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

490949 is a deficient number, since it is larger than the sum of its proper divisors (1).

490949 is an equidigital number, since it uses as much as digits as its factorization.

490949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 490949 is about 700.6775292529. The cubic root of 490949 is about 78.8882144872. Note that the first 3 decimals are identical.

The spelling of 490949 in words is "four hundred ninety thousand, nine hundred forty-nine".