380557 has 2 divisors, whose sum is σ = 380558. Its totient is φ = 380556.

The previous prime is 380533. The next prime is 380563. The reversal of 380557 is 755083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281961 + 98596 = 531^2 + 314^2 .

It is a cyclic number.

It is not a de Polignac number, because 380557 - 2¹¹ = 378509 is a prime.

380557 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380657) 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 as a sum of consecutive naturals, namely, 190278 + 190279.

It is an arithmetic number, because the mean of its divisors is an integer number (190279).

2³⁸⁰⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

380557 is a deficient number, since it is larger than the sum of its proper divisors (1).

380557 is an equidigital number, since it uses as much as digits as its factorization.

380557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 380557 is about 616.8930215199. The cubic root of 380557 is about 72.4669369654.

The spelling of 380557 in words is "three hundred eighty thousand, five hundred fifty-seven".