438285983 has 2 divisors, whose sum is σ = 438285984. Its totient is φ = 438285982.

The previous prime is 438285949. The next prime is 438286003. The reversal of 438285983 is 389582834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 438285983 - 2⁶ = 438285919 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438285943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219142991 + 219142992.

It is an arithmetic number, because the mean of its divisors is an integer number (219142992).

Almost surely, 2^438285983 is an apocalyptic number.

438285983 is a deficient number, since it is larger than the sum of its proper divisors (1).

438285983 is an equidigital number, since it uses as much as digits as its factorization.

438285983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 50.

The square root of 438285983 is about 20935.2808197072. The cubic root of 438285983 is about 759.6015819154.

The spelling of 438285983 in words is "four hundred thirty-eight million, two hundred eighty-five thousand, nine hundred eighty-three".