380687 has 4 divisors (see below), whose sum is σ = 382800. Its totient is φ = 378576.

The previous prime is 380657. The next prime is 380707. The reversal of 380687 is 786083.

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 380687 - 2⁶ = 380623 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 380687.

It is not an unprimeable number, because it can be changed into a prime (380657) 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, 758 + ... + 1155.

It is an arithmetic number, because the mean of its divisors is an integer number (95700).

2³⁸⁰⁶⁸⁷ is an apocalyptic number.

380687 is a deficient number, since it is larger than the sum of its proper divisors (2113).

380687 is a wasteful number, since it uses less digits than its factorization.

380687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 380687 is about 616.9983792523. The cubic root of 380687 is about 72.4751877043.

The spelling of 380687 in words is "three hundred eighty thousand, six hundred eighty-seven".