386381 has 2 divisors, whose sum is σ = 386382. Its totient is φ = 386380.

The previous prime is 386371. The next prime is 386383. The reversal of 386381 is 183683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198025 + 188356 = 445^2 + 434^2 .

It is an emirp because it is prime and its reverse (183683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 386381 - 2¹⁴ = 369997 is a prime.

It is a super-2 number, since 2×386381² = 298580554322, which contains 22 as substring.

Together with 386383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386383) 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, 193190 + 193191.

It is an arithmetic number, because the mean of its divisors is an integer number (193191).

2³⁸⁶³⁸¹ is an apocalyptic number.

It is an amenable number.

386381 is a deficient number, since it is larger than the sum of its proper divisors (1).

386381 is an equidigital number, since it uses as much as digits as its factorization.

386381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 386381 is about 621.5955276544. The cubic root of 386381 is about 72.8347422026.

It can be divided in two parts, 386 and 381, that added together give a palindrome (767).

The spelling of 386381 in words is "three hundred eighty-six thousand, three hundred eighty-one".