4437993 has 8 divisors (see below), whose sum is σ = 6762688. Its totient is φ = 2535984.

The previous prime is 4437989. The next prime is 4438009. The reversal of 4437993 is 3997344.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4437993 - 2² = 4437989 is a prime.

It is a Duffinian number.

4437993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4437913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105646 + ... + 105687.

It is an arithmetic number, because the mean of its divisors is an integer number (845336).

Almost surely, 2^4437993 is an apocalyptic number.

It is an amenable number.

4437993 is a deficient number, since it is larger than the sum of its proper divisors (2324695).

4437993 is a wasteful number, since it uses less digits than its factorization.

4437993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211343.

The product of its digits is 81648, while the sum is 39.

The square root of 4437993 is about 2106.6544567157. The cubic root of 4437993 is about 164.3345466142.

The spelling of 4437993 in words is "four million, four hundred thirty-seven thousand, nine hundred ninety-three".