381683 has 4 divisors (see below), whose sum is σ = 383520. Its totient is φ = 379848.

The previous prime is 381673. The next prime is 381697. The reversal of 381683 is 386183.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381673) 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, 560 + ... + 1037.

It is an arithmetic number, because the mean of its divisors is an integer number (95880).

2³⁸¹⁶⁸³ is an apocalyptic number.

381683 is a deficient number, since it is larger than the sum of its proper divisors (1837).

381683 is a wasteful number, since it uses less digits than its factorization.

381683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

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

The square root of 381683 is about 617.8049854121. The cubic root of 381683 is about 72.5383388187.

The spelling of 381683 in words is "three hundred eighty-one thousand, six hundred eighty-three".