380569 has 4 divisors (see below), whose sum is σ = 434944. Its totient is φ = 326196.

The previous prime is 380563. The next prime is 380591. The reversal of 380569 is 965083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 965083 = 7 ⋅137869.

It is a cyclic number.

It is not a de Polignac number, because 380569 - 2⁷ = 380441 is a prime.

It is a super-2 number, since 2×380569² = 289665527522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 380569.

It is not an unprimeable number, because it can be changed into a prime (380563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27177 + ... + 27190.

It is an arithmetic number, because the mean of its divisors is an integer number (108736).

2³⁸⁰⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

380569 is a deficient number, since it is larger than the sum of its proper divisors (54375).

380569 is an equidigital number, since it uses as much as digits as its factorization.

380569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54374.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 380569 is about 616.9027476029. The cubic root of 380569 is about 72.4676986508.

It can be divided in two parts, 380 and 569, that added together give a palindrome (949).

The spelling of 380569 in words is "three hundred eighty thousand, five hundred sixty-nine".