490579 has 2 divisors, whose sum is σ = 490580. Its totient is φ = 490578.

The previous prime is 490577. The next prime is 490591. The reversal of 490579 is 975094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490579 - 2¹ = 490577 is a prime.

Together with 490577, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (490571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245289 + 245290.

It is an arithmetic number, because the mean of its divisors is an integer number (245290).

2⁴⁹⁰⁵⁷⁹ is an apocalyptic number.

490579 is a deficient number, since it is larger than the sum of its proper divisors (1).

490579 is an equidigital number, since it uses as much as digits as its factorization.

490579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 490579 is about 700.4134493283. The cubic root of 490579 is about 78.8683916713.

Subtracting from 490579 its sum of digits (34), we obtain a triangular number (490545 = T₉₉₀).

The spelling of 490579 in words is "four hundred ninety thousand, five hundred seventy-nine".