490819217 has 4 divisors (see below), whose sum is σ = 560936256. Its totient is φ = 420702180.

The previous prime is 490819213. The next prime is 490819327. The reversal of 490819217 is 712918094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 490819217 - 2² = 490819213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490819213) 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 in 3 ways as a sum of consecutive naturals, for example, 35058509 + ... + 35058522.

It is an arithmetic number, because the mean of its divisors is an integer number (140234064).

Almost surely, 2^490819217 is an apocalyptic number.

It is an amenable number.

490819217 is a deficient number, since it is larger than the sum of its proper divisors (70117039).

490819217 is an equidigital number, since it uses as much as digits as its factorization.

490819217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70117038.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 490819217 is about 22154.4401193079. The cubic root of 490819217 is about 788.8126247427.

The spelling of 490819217 in words is "four hundred ninety million, eight hundred nineteen thousand, two hundred seventeen".