443998 has 4 divisors (see below), whose sum is σ = 666000. Its totient is φ = 221998.

The previous prime is 443987. The next prime is 443999. The reversal of 443998 is 899344.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443999) 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, 110998 + ... + 111001.

It is an arithmetic number, because the mean of its divisors is an integer number (166500).

2⁴⁴³⁹⁹⁸ is an apocalyptic number.

443998 is a deficient number, since it is larger than the sum of its proper divisors (222002).

443998 is a wasteful number, since it uses less digits than its factorization.

443998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222001.

The product of its digits is 31104, while the sum is 37.

The square root of 443998 is about 666.3317492061. The cubic root of 443998 is about 76.2887217106.

It can be divided in two parts, 443 and 998, that added together give a palindrome (1441).

The spelling of 443998 in words is "four hundred forty-three thousand, nine hundred ninety-eight".