3943541 has 16 divisors (see below), whose sum is σ = 4930560. Its totient is φ = 3075840.

The previous prime is 3943531. The next prime is 3943543. The reversal of 3943541 is 1453493.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3943541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3155 + ... + 4223.

It is an arithmetic number, because the mean of its divisors is an integer number (308160).

Almost surely, 2^3943541 is an apocalyptic number.

3943541 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3943541 is a deficient number, since it is larger than the sum of its proper divisors (987019).

3943541 is a wasteful number, since it uses less digits than its factorization.

3943541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124.

The product of its digits is 6480, while the sum is 29.

The square root of 3943541 is about 1985.8350888228. The cubic root of 3943541 is about 157.9897045046.

The spelling of 3943541 in words is "three million, nine hundred forty-three thousand, five hundred forty-one".