4331993 has 4 divisors (see below), whose sum is σ = 4351140. Its totient is φ = 4312848.

The previous prime is 4331989. The next prime is 4332001. The reversal of 4331993 is 3991334.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3794704 + 537289 = 1948^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 4331993 - 2² = 4331989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4331953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9230 + ... + 9687.

It is an arithmetic number, because the mean of its divisors is an integer number (1087785).

Almost surely, 2^4331993 is an apocalyptic number.

It is an amenable number.

4331993 is a deficient number, since it is larger than the sum of its proper divisors (19147).

4331993 is a wasteful number, since it uses less digits than its factorization.

4331993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19146.

The product of its digits is 8748, while the sum is 32.

The square root of 4331993 is about 2081.3440369146. The cubic root of 4331993 is about 163.0156307542.

The spelling of 4331993 in words is "four million, three hundred thirty-one thousand, nine hundred ninety-three".