408673 has 4 divisors (see below), whose sum is σ = 421888. Its totient is φ = 395460.

The previous prime is 408659. The next prime is 408677. The reversal of 408673 is 376804.

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 408673 - 2¹³ = 400481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408677) 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, 6561 + ... + 6622.

It is an arithmetic number, because the mean of its divisors is an integer number (105472).

2⁴⁰⁸⁶⁷³ is an apocalyptic number.

It is an amenable number.

408673 is a deficient number, since it is larger than the sum of its proper divisors (13215).

408673 is a wasteful number, since it uses less digits than its factorization.

408673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13214.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 408673 is about 639.2753710257. The cubic root of 408673 is about 74.2093535916.

It can be divided in two parts, 408 and 673, that added together give a triangular number (1081 = T₄₆).

The spelling of 408673 in words is "four hundred eight thousand, six hundred seventy-three".