490000493 has 2 divisors, whose sum is σ = 490000494. Its totient is φ = 490000492.

The previous prime is 490000463. The next prime is 490000573. The reversal of 490000493 is 394000094.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 462981289 + 27019204 = 21517^2 + 5198^2 .

It is a cyclic number.

It is not a de Polignac number, because 490000493 - 2¹⁶ = 489934957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490000463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245000246 + 245000247.

It is an arithmetic number, because the mean of its divisors is an integer number (245000247).

Almost surely, 2^490000493 is an apocalyptic number.

It is an amenable number.

490000493 is a deficient number, since it is larger than the sum of its proper divisors (1).

490000493 is an equidigital number, since it uses as much as digits as its factorization.

490000493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 490000493 is about 22135.9547569108. The cubic root of 490000493 is about 788.3737807105.

The spelling of 490000493 in words is "four hundred ninety million, four hundred ninety-three", and thus it is an aban number.