408705 has 16 divisors (see below), whose sum is σ = 713664. Its totient is φ = 198080.

The previous prime is 408703. The next prime is 408713. The reversal of 408705 is 507804.

It is not a de Polignac number, because 408705 - 2¹ = 408703 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 408705.

It is not an unprimeable number, because it can be changed into a prime (408701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1074 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (44604).

2⁴⁰⁸⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

408705 is a deficient number, since it is larger than the sum of its proper divisors (304959).

408705 is a wasteful number, since it uses less digits than its factorization.

408705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 408705 is about 639.3003988736. The cubic root of 408705 is about 74.2112904599.

Subtracting 408705 from its reverse (507804), we obtain a palindrome (99099).

The spelling of 408705 in words is "four hundred eight thousand, seven hundred five".