490993 has 2 divisors, whose sum is σ = 490994. Its totient is φ = 490992.

The previous prime is 490991. The next prime is 491003. The reversal of 490993 is 399094.

490993 is nontrivially palindromic in base 8.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485809 + 5184 = 697^2 + 72^2 .

It is a cyclic number.

It is not a de Polignac number, because 490993 - 2¹ = 490991 is a prime.

Together with 490991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (490991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245496 + 245497.

It is an arithmetic number, because the mean of its divisors is an integer number (245497).

2⁴⁹⁰⁹⁹³ is an apocalyptic number.

It is an amenable number.

490993 is a deficient number, since it is larger than the sum of its proper divisors (1).

490993 is an equidigital number, since it uses as much as digits as its factorization.

490993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 490993 is about 700.7089267306. The cubic root of 490993 is about 78.8905711324.

The spelling of 490993 in words is "four hundred ninety thousand, nine hundred ninety-three".