38447 has 2 divisors, whose sum is σ = 38448. Its totient is φ = 38446.

The previous prime is 38431. The next prime is 38449. The reversal of 38447 is 74483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38447 - 2⁴ = 38431 is a prime.

Together with 38449, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19223 + 19224.

It is an arithmetic number, because the mean of its divisors is an integer number (19224).

2³⁸⁴⁴⁷ is an apocalyptic number.

38447 is a deficient number, since it is larger than the sum of its proper divisors (1).

38447 is an equidigital number, since it uses as much as digits as its factorization.

38447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 26.

The square root of 38447 is about 196.0790656852. The cubic root of 38447 is about 33.7510653527.

The spelling of 38447 in words is "thirty-eight thousand, four hundred forty-seven".