383885 has 4 divisors (see below), whose sum is σ = 460668. Its totient is φ = 307104.

The previous prime is 383869. The next prime is 383891. The reversal of 383885 is 588383.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 292681 = 302^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 383885 - 2⁴ = 383869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38384 + ... + 38393.

It is an arithmetic number, because the mean of its divisors is an integer number (115167).

2³⁸³⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

383885 is a deficient number, since it is larger than the sum of its proper divisors (76783).

383885 is an equidigital number, since it uses as much as digits as its factorization.

383885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76782.

The product of its digits is 23040, while the sum is 35.

The square root of 383885 is about 619.5845382190. The cubic root of 383885 is about 72.6775671254.

The spelling of 383885 in words is "three hundred eighty-three thousand, eight hundred eighty-five".