490393 has 2 divisors, whose sum is σ = 490394. Its totient is φ = 490392.

The previous prime is 490367. The next prime is 490417. The reversal of 490393 is 393094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451584 + 38809 = 672^2 + 197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490393 is a prime.

It is not a weakly prime, because it can be changed into another prime (490313) 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, 245196 + 245197.

It is an arithmetic number, because the mean of its divisors is an integer number (245197).

2⁴⁹⁰³⁹³ is an apocalyptic number.

It is an amenable number.

490393 is a deficient number, since it is larger than the sum of its proper divisors (1).

490393 is an equidigital number, since it uses as much as digits as its factorization.

490393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 490393 is about 700.2806580222. The cubic root of 490393 is about 78.8584229233.

The spelling of 490393 in words is "four hundred ninety thousand, three hundred ninety-three".