404317 has 4 divisors (see below), whose sum is σ = 421920. Its totient is φ = 386716.

The previous prime is 404309. The next prime is 404321. The reversal of 404317 is 713404.

It is a happy number.

404317 is nontrivially palindromic in base 15.

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 a cyclic number.

It is not a de Polignac number, because 404317 - 2³ = 404309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404294 and 404303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404357) 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, 8767 + ... + 8812.

It is an arithmetic number, because the mean of its divisors is an integer number (105480).

2⁴⁰⁴³¹⁷ is an apocalyptic number.

It is an amenable number.

404317 is a deficient number, since it is larger than the sum of its proper divisors (17603).

404317 is a wasteful number, since it uses less digits than its factorization.

404317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17602.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 404317 is about 635.8592611577. The cubic root of 404317 is about 73.9447481406.

The spelling of 404317 in words is "four hundred four thousand, three hundred seventeen", and thus it is an iban number.