497569 has 4 divisors (see below), whose sum is σ = 500500. Its totient is φ = 494640.

The previous prime is 497561. The next prime is 497579. The reversal of 497569 is 965794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 965794 = 2 ⋅482897.

It can be written as a sum of positive squares in 2 ways, for example, as 25600 + 471969 = 160^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 497569 - 2³ = 497561 is a prime.

It is a super-2 number, since 2×497569² = 495149819522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (125125).

2⁴⁹⁷⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

497569 is a deficient number, since it is larger than the sum of its proper divisors (2931).

497569 is a wasteful number, since it uses less digits than its factorization.

497569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930.

The product of its digits is 68040, while the sum is 40.

The square root of 497569 is about 705.3857100906. The cubic root of 497569 is about 79.2412111647.

It can be divided in two parts, 49 and 7569, that multiplied together give a square (370881 = 609²).

The spelling of 497569 in words is "four hundred ninety-seven thousand, five hundred sixty-nine".