477909 has 6 divisors (see below), whose sum is σ = 690326. Its totient is φ = 318600.

The previous prime is 477899. The next prime is 477913. The reversal of 477909 is 909774.

It can be written as a sum of positive squares in only one way, i.e., 459684 + 18225 = 678^2 + 135^2 .

It is not a de Polignac number, because 477909 - 2¹³ = 469717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477209) 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 5 ways as a sum of consecutive naturals, for example, 26542 + ... + 26559.

2⁴⁷⁷⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

477909 is a deficient number, since it is larger than the sum of its proper divisors (212417).

477909 is a wasteful number, since it uses less digits than its factorization.

477909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53107 (or 53104 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 477909 is about 691.3096267231. The cubic root of 477909 is about 78.1834930480.

The spelling of 477909 in words is "four hundred seventy-seven thousand, nine hundred nine".