380789 has 4 divisors (see below), whose sum is σ = 382956. Its totient is φ = 378624.

The previous prime is 380777. The next prime is 380797. The reversal of 380789 is 987083.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87025 + 293764 = 295^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 380789 - 2⁸ = 380533 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 380789.

It is not an unprimeable number, because it can be changed into a prime (380729) 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 3 ways as a sum of consecutive naturals, for example, 794 + ... + 1179.

It is an arithmetic number, because the mean of its divisors is an integer number (95739).

2³⁸⁰⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

380789 is a deficient number, since it is larger than the sum of its proper divisors (2167).

380789 is a wasteful number, since it uses less digits than its factorization.

380789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 380789 is about 617.0810319561. The cubic root of 380789 is about 72.4816600459.

The spelling of 380789 in words is "three hundred eighty thousand, seven hundred eighty-nine".