3941805 has 48 divisors (see below), whose sum is σ = 7617024. Its totient is φ = 1733760.

The previous prime is 3941803. The next prime is 3941831. The reversal of 3941805 is 5081493.

It is not a de Polignac number, because 3941805 - 2¹ = 3941803 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

3941805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3941801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22699 + ... + 22871.

It is an arithmetic number, because the mean of its divisors is an integer number (158688).

Almost surely, 2^3941805 is an apocalyptic number.

3941805 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3941805 is a deficient number, since it is larger than the sum of its proper divisors (3675219).

3941805 is a wasteful number, since it uses less digits than its factorization.

3941805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 3941805 is about 1985.3979449974. The cubic root of 3941805 is about 157.9665180348.

The spelling of 3941805 in words is "three million, nine hundred forty-one thousand, eight hundred five".