437998 has 16 divisors (see below), whose sum is σ = 734976. Its totient is φ = 194040.

The previous prime is 437977. The next prime is 438001. The reversal of 437998 is 899734.

It is an Ulam number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 437998.

It is a congruent number.

It is an unprimeable number.

437998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 7 ways as a sum of consecutive naturals, for example, 715 + ... + 1177.

It is an arithmetic number, because the mean of its divisors is an integer number (45936).

2⁴³⁷⁹⁹⁸ is an apocalyptic number.

437998 is a deficient number, since it is larger than the sum of its proper divisors (296978).

437998 is a wasteful number, since it uses less digits than its factorization.

437998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519.

The product of its digits is 54432, while the sum is 40.

The square root of 437998 is about 661.8141733145. The cubic root of 437998 is about 75.9435175900.

The spelling of 437998 in words is "four hundred thirty-seven thousand, nine hundred ninety-eight".