3941857 has 4 divisors (see below), whose sum is σ = 3948736. Its totient is φ = 3934980.

The previous prime is 3941837. The next prime is 3941887. The reversal of 3941857 is 7581493.

3941857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3941857 - 2¹⁹ = 3417569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3941837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493 + ... + 3754.

It is an arithmetic number, because the mean of its divisors is an integer number (987184).

Almost surely, 2^3941857 is an apocalyptic number.

It is an amenable number.

3941857 is a deficient number, since it is larger than the sum of its proper divisors (6879).

3941857 is an equidigital number, since it uses as much as digits as its factorization.

3941857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878.

The product of its digits is 30240, while the sum is 37.

The square root of 3941857 is about 1985.4110405657. The cubic root of 3941857 is about 157.9672126593.

The spelling of 3941857 in words is "three million, nine hundred forty-one thousand, eight hundred fifty-seven".