380785 has 4 divisors (see below), whose sum is σ = 456948. Its totient is φ = 304624.

The previous prime is 380777. The next prime is 380797. The reversal of 380785 is 587083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587083 = 7 ⋅83869.

It can be written as a sum of positive squares in 2 ways, for example, as 92416 + 288369 = 304^2 + 537^2 .

It is a cyclic number.

It is not a de Polignac number, because 380785 - 2³ = 380777 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 38074 + ... + 38083.

It is an arithmetic number, because the mean of its divisors is an integer number (114237).

2³⁸⁰⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

380785 is a deficient number, since it is larger than the sum of its proper divisors (76163).

380785 is an equidigital number, since it uses as much as digits as its factorization.

380785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76162.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 380785 is about 617.0777908822. The cubic root of 380785 is about 72.4814062504.

It can be divided in two parts, 38078 and 5, that added together give a palindrome (38083).

The spelling of 380785 in words is "three hundred eighty thousand, seven hundred eighty-five".