3981593 has 24 divisors (see below), whose sum is σ = 5171040. Its totient is φ = 3030720.

The previous prime is 3981589. The next prime is 3981617. The reversal of 3981593 is 3951893.

It is not a de Polignac number, because 3981593 - 2² = 3981589 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3981503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44693 + ... + 44781.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

Almost surely, 2^3981593 is an apocalyptic number.

It is an amenable number.

3981593 is a deficient number, since it is larger than the sum of its proper divisors (1189447).

3981593 is a wasteful number, since it uses less digits than its factorization.

3981593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 190 counting only the distinct ones).

The product of its digits is 29160, while the sum is 38.

The square root of 3981593 is about 1995.3929437582. The cubic root of 3981593 is about 158.4962366463.

It can be divided in two parts, 398 and 1593, that added together give a palindrome (1991).

The spelling of 3981593 in words is "three million, nine hundred eighty-one thousand, five hundred ninety-three".