496809 has 6 divisors (see below), whose sum is σ = 717626. Its totient is φ = 331200.

The previous prime is 496789. The next prime is 496813. The reversal of 496809 is 908694.

It can be written as a sum of positive squares in only one way, i.e., 291600 + 205209 = 540^2 + 453^2 .

It is not a de Polignac number, because 496809 - 2⁷ = 496681 is a prime.

It is a Duffinian number.

496809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (496849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27592 + ... + 27609.

2⁴⁹⁶⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

496809 is a deficient number, since it is larger than the sum of its proper divisors (220817).

496809 is a wasteful number, since it uses less digits than its factorization.

496809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55207 (or 55204 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 496809 is about 704.8467918633. The cubic root of 496809 is about 79.2008455680.

The spelling of 496809 in words is "four hundred ninety-six thousand, eight hundred nine".