4081943 has 4 divisors (see below), whose sum is σ = 4120200. Its totient is φ = 4043688.

The previous prime is 4081933. The next prime is 4081949. The reversal of 4081943 is 3491804.

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

It is a cyclic number.

It is not a de Polignac number, because 4081943 - 2¹² = 4077847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081949) 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, 18968 + ... + 19181.

It is an arithmetic number, because the mean of its divisors is an integer number (1030050).

Almost surely, 2^4081943 is an apocalyptic number.

4081943 is a deficient number, since it is larger than the sum of its proper divisors (38257).

4081943 is a wasteful number, since it uses less digits than its factorization.

4081943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38256.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4081943 is about 2020.3818945932. The cubic root of 4081943 is about 159.8167563620.

The spelling of 4081943 in words is "four million, eighty-one thousand, nine hundred forty-three".