497561 has 2 divisors, whose sum is σ = 497562. Its totient is φ = 497560.

The previous prime is 497557. The next prime is 497579. The reversal of 497561 is 165794.

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., 337561 + 160000 = 581^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 497561 - 2² = 497557 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (497501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248780 + 248781.

It is an arithmetic number, because the mean of its divisors is an integer number (248781).

2⁴⁹⁷⁵⁶¹ is an apocalyptic number.

It is an amenable number.

497561 is a deficient number, since it is larger than the sum of its proper divisors (1).

497561 is an equidigital number, since it uses as much as digits as its factorization.

497561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 497561 is about 705.3800394114. The cubic root of 497561 is about 79.2407864778.

The spelling of 497561 in words is "four hundred ninety-seven thousand, five hundred sixty-one".