383687 has 4 divisors (see below), whose sum is σ = 396096. Its totient is φ = 371280.

The previous prime is 383683. The next prime is 383693. The reversal of 383687 is 786383.

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

It is a cyclic number.

It is not a de Polignac number, because 383687 - 2² = 383683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 383687.

It is not an unprimeable number, because it can be changed into a prime (383681) 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, 6158 + ... + 6219.

It is an arithmetic number, because the mean of its divisors is an integer number (99024).

2³⁸³⁶⁸⁷ is an apocalyptic number.

383687 is a deficient number, since it is larger than the sum of its proper divisors (12409).

383687 is a wasteful number, since it uses less digits than its factorization.

383687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12408.

The product of its digits is 24192, while the sum is 35.

The square root of 383687 is about 619.4247331194. The cubic root of 383687 is about 72.6650697776.

The spelling of 383687 in words is "three hundred eighty-three thousand, six hundred eighty-seven".