490571 has 2 divisors, whose sum is σ = 490572. Its totient is φ = 490570.

The previous prime is 490559. The next prime is 490573. The reversal of 490571 is 175094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490571 - 2¹⁸ = 228427 is a prime.

Together with 490573, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 490571.

It is not a weakly prime, because it can be changed into another prime (490573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245285 + 245286.

It is an arithmetic number, because the mean of its divisors is an integer number (245286).

2⁴⁹⁰⁵⁷¹ is an apocalyptic number.

490571 is a deficient number, since it is larger than the sum of its proper divisors (1).

490571 is an equidigital number, since it uses as much as digits as its factorization.

490571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 490571 is about 700.4077383924. The cubic root of 490571 is about 78.8679629598.

Subtracting from 490571 its sum of digits (26), we obtain a triangular number (490545 = T₉₉₀).

The spelling of 490571 in words is "four hundred ninety thousand, five hundred seventy-one".