8342381 has 2 divisors, whose sum is σ = 8342382. Its totient is φ = 8342380.

The previous prime is 8342377. The next prime is 8342407. The reversal of 8342381 is 1832438.

It is a happy number.

8342381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5924356 + 2418025 = 2434^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 8342381 - 2² = 8342377 is a prime.

It is a super-2 number, since 2×8342381² = 139190641498322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8342351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4171190 + 4171191.

It is an arithmetic number, because the mean of its divisors is an integer number (4171191).

Almost surely, 2^8342381 is an apocalyptic number.

It is an amenable number.

8342381 is a deficient number, since it is larger than the sum of its proper divisors (1).

8342381 is an equidigital number, since it uses as much as digits as its factorization.

8342381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 8342381 is about 2888.3180226561. The cubic root of 8342381 is about 202.8134129626.

The spelling of 8342381 in words is "eight million, three hundred forty-two thousand, three hundred eighty-one".