404867 has 4 divisors (see below), whose sum is σ = 412560. Its totient is φ = 397176.

The previous prime is 404851. The next prime is 404941. The reversal of 404867 is 768404.

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 404867 - 2⁴ = 404851 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 (404827) 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, 3767 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (103140).

2⁴⁰⁴⁸⁶⁷ is an apocalyptic number.

404867 is a deficient number, since it is larger than the sum of its proper divisors (7693).

404867 is an equidigital number, since it uses as much as digits as its factorization.

404867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7692.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 404867 is about 636.2915998188. The cubic root of 404867 is about 73.9782624245.

It can be divided in two parts, 4048 and 67, that multiplied together give a triangular number (271216 = T₇₃₆).

The spelling of 404867 in words is "four hundred four thousand, eight hundred sixty-seven".