497578 has 4 divisors (see below), whose sum is σ = 746370. Its totient is φ = 248788.

The previous prime is 497561. The next prime is 497579. The reversal of 497578 is 875794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 405769 + 91809 = 637^2 + 303^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 497578.

It is not an unprimeable number, because it can be changed into a prime (497579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124393 + ... + 124396.

2⁴⁹⁷⁵⁷⁸ is an apocalyptic number.

497578 is a deficient number, since it is larger than the sum of its proper divisors (248792).

497578 is a wasteful number, since it uses less digits than its factorization.

497578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248791.

The product of its digits is 70560, while the sum is 40.

The square root of 497578 is about 705.3920895502. The cubic root of 497578 is about 79.2416889320.

The spelling of 497578 in words is "four hundred ninety-seven thousand, five hundred seventy-eight".