838447 has 2 divisors, whose sum is σ = 838448. Its totient is φ = 838446.

The previous prime is 838441. The next prime is 838459. The reversal of 838447 is 744838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 838447 - 2¹⁹ = 314159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419223 + 419224.

It is an arithmetic number, because the mean of its divisors is an integer number (419224).

2⁸³⁸⁴⁴⁷ is an apocalyptic number.

838447 is a deficient number, since it is larger than the sum of its proper divisors (1).

838447 is an equidigital number, since it uses as much as digits as its factorization.

838447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 34.

The square root of 838447 is about 915.6675160778. The cubic root of 838447 is about 94.2956962846.

The spelling of 838447 in words is "eight hundred thirty-eight thousand, four hundred forty-seven".