497649 has 4 divisors (see below), whose sum is σ = 663536. Its totient is φ = 331764.

The previous prime is 497633. The next prime is 497659. The reversal of 497649 is 946794.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 497649 - 2⁴ = 497633 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (497659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82939 + ... + 82944.

It is an arithmetic number, because the mean of its divisors is an integer number (165884).

2⁴⁹⁷⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

497649 is a deficient number, since it is larger than the sum of its proper divisors (165887).

497649 is a wasteful number, since it uses less digits than its factorization.

497649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165886.

The product of its digits is 54432, while the sum is 39.

The square root of 497649 is about 705.4424143755. The cubic root of 497649 is about 79.2454577832.

The spelling of 497649 in words is "four hundred ninety-seven thousand, six hundred forty-nine".