381827417 has 2 divisors, whose sum is σ = 381827418. Its totient is φ = 381827416.

The previous prime is 381827377. The next prime is 381827419. The reversal of 381827417 is 714728183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209062681 + 172764736 = 14459^2 + 13144^2 .

It is a cyclic number.

It is not a de Polignac number, because 381827417 - 2⁶ = 381827353 is a prime.

Together with 381827419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (381827419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190913708 + 190913709.

It is an arithmetic number, because the mean of its divisors is an integer number (190913709).

Almost surely, 2^381827417 is an apocalyptic number.

It is an amenable number.

381827417 is a deficient number, since it is larger than the sum of its proper divisors (1).

381827417 is an equidigital number, since it uses as much as digits as its factorization.

381827417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 41.

The square root of 381827417 is about 19540.4047296877. The cubic root of 381827417 is about 725.4748641707.

The spelling of 381827417 in words is "three hundred eighty-one million, eight hundred twenty-seven thousand, four hundred seventeen".