383861 has 8 divisors (see below), whose sum is σ = 401280. Its totient is φ = 366912.

The previous prime is 383839. The next prime is 383869. The reversal of 383861 is 168383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 383861 - 2⁶ = 383797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3341 + ... + 3453.

It is an arithmetic number, because the mean of its divisors is an integer number (50160).

2³⁸³⁸⁶¹ is an apocalyptic number.

It is an amenable number.

383861 is a deficient number, since it is larger than the sum of its proper divisors (17419).

383861 is a wasteful number, since it uses less digits than its factorization.

383861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235.

The product of its digits is 3456, while the sum is 29.

The square root of 383861 is about 619.5651700992. The cubic root of 383861 is about 72.6760525242.

The spelling of 383861 in words is "three hundred eighty-three thousand, eight hundred sixty-one".