490779 has 20 divisors (see below), whose sum is σ = 752136. Its totient is φ = 318816.

The previous prime is 490771. The next prime is 490783. The reversal of 490779 is 977094.

It is not a de Polignac number, because 490779 - 2³ = 490771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490771) 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 19 ways as a sum of consecutive naturals, for example, 5872 + ... + 5954.

2⁴⁹⁰⁷⁷⁹ is an apocalyptic number.

490779 is a deficient number, since it is larger than the sum of its proper divisors (261357).

490779 is an equidigital number, since it uses as much as digits as its factorization.

490779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 490779 is about 700.5562075951. The cubic root of 490779 is about 78.8791079441.

The spelling of 490779 in words is "four hundred ninety thousand, seven hundred seventy-nine".