408785 has 16 divisors (see below), whose sum is σ = 557760. Its totient is φ = 285120.

The previous prime is 408773. The next prime is 408787. The reversal of 408785 is 587804.

It is not a de Polignac number, because 408785 - 2⁴ = 408769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408787) 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, 1070 + ... + 1400.

It is an arithmetic number, because the mean of its divisors is an integer number (34860).

2⁴⁰⁸⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

408785 is a deficient number, since it is larger than the sum of its proper divisors (148975).

408785 is a wasteful number, since it uses less digits than its factorization.

408785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 408785 is about 639.3629642073. The cubic root of 408785 is about 74.2161321884.

The spelling of 408785 in words is "four hundred eight thousand, seven hundred eighty-five".