3942085 has 32 divisors (see below), whose sum is σ = 5806080. Its totient is φ = 2511168.

The previous prime is 3942067. The next prime is 3942089. The reversal of 3942085 is 5802493.

3942085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3942085 - 2⁷ = 3941957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942089) 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 31 ways as a sum of consecutive naturals, for example, 47454 + ... + 47536.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

Almost surely, 2^3942085 is an apocalyptic number.

3942085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3942085 is a deficient number, since it is larger than the sum of its proper divisors (1863995).

3942085 is a wasteful number, since it uses less digits than its factorization.

3942085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3942085 is about 1985.4684585760. The cubic root of 3942085 is about 157.9702582484.

It can be divided in two parts, 39 and 42085, that added together give a palindrome (42124).

The spelling of 3942085 in words is "three million, nine hundred forty-two thousand, eighty-five".