4031993 has 8 divisors (see below), whose sum is σ = 4677312. Its totient is φ = 3404016.

The previous prime is 4031987. The next prime is 4032029. The reversal of 4031993 is 3991304.

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

It is not a de Polignac number, because 4031993 - 2⁴ = 4031977 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 (4031903) 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, 3830 + ... + 4767.

It is an arithmetic number, because the mean of its divisors is an integer number (584664).

Almost surely, 2^4031993 is an apocalyptic number.

It is an amenable number.

4031993 is a deficient number, since it is larger than the sum of its proper divisors (645319).

4031993 is an equidigital number, since it uses as much as digits as its factorization.

4031993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8671.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 4031993 is about 2007.9823206393. The cubic root of 4031993 is about 159.1621962080.

The spelling of 4031993 in words is "four million, thirty-one thousand, nine hundred ninety-three".