438047 has 2 divisors, whose sum is σ = 438048. Its totient is φ = 438046.

The previous prime is 438029. The next prime is 438049. The reversal of 438047 is 740834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 438047 - 2¹⁶ = 372511 is a prime.

Together with 438049, 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 an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 438047.

It is not a weakly prime, because it can be changed into another prime (438049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219023 + 219024.

It is an arithmetic number, because the mean of its divisors is an integer number (219024).

2⁴³⁸⁰⁴⁷ is an apocalyptic number.

438047 is a deficient number, since it is larger than the sum of its proper divisors (1).

438047 is an equidigital number, since it uses as much as digits as its factorization.

438047 is an odious number, because the sum of its binary digits is odd.

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

The square root of 438047 is about 661.8511917342. The cubic root of 438047 is about 75.9463494855.

The spelling of 438047 in words is "four hundred thirty-eight thousand, forty-seven".