404659 has 4 divisors (see below), whose sum is σ = 407880. Its totient is φ = 401440.

The previous prime is 404597. The next prime is 404671. The reversal of 404659 is 956404.

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

It is a cyclic number.

It is not a de Polignac number, because 404659 - 2⁷ = 404531 is a prime.

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 (404699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1414 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (101970).

2⁴⁰⁴⁶⁵⁹ is an apocalyptic number.

404659 is a deficient number, since it is larger than the sum of its proper divisors (3221).

404659 is a wasteful number, since it uses less digits than its factorization.

404659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 404659 is about 636.1281317471. The cubic root of 404659 is about 73.9655915026.

The spelling of 404659 in words is "four hundred four thousand, six hundred fifty-nine".