438887 has 2 divisors, whose sum is σ = 438888. Its totient is φ = 438886.

The previous prime is 438877. The next prime is 438899. The reversal of 438887 is 788834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438887 - 2⁸ = 438631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 438887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219443 + 219444.

It is an arithmetic number, because the mean of its divisors is an integer number (219444).

2⁴³⁸⁸⁸⁷ is an apocalyptic number.

438887 is a deficient number, since it is larger than the sum of its proper divisors (1).

438887 is an equidigital number, since it uses as much as digits as its factorization.

438887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 38.

The square root of 438887 is about 662.4854715388. The cubic root of 438887 is about 75.9948634571.

The spelling of 438887 in words is "four hundred thirty-eight thousand, eight hundred eighty-seven".