3946855 has 8 divisors (see below), whose sum is σ = 5166864. Its totient is φ = 2870400.

The previous prime is 3946853. The next prime is 3946879. The reversal of 3946855 is 5586493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3946855 - 2¹ = 3946853 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 (3946853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35826 + ... + 35935.

It is an arithmetic number, because the mean of its divisors is an integer number (645858).

Almost surely, 2^3946855 is an apocalyptic number.

3946855 is a deficient number, since it is larger than the sum of its proper divisors (1220009).

3946855 is a wasteful number, since it uses less digits than its factorization.

3946855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71777.

The product of its digits is 129600, while the sum is 40.

The square root of 3946855 is about 1986.6693232644. The cubic root of 3946855 is about 158.0339482679.

The spelling of 3946855 in words is "three million, nine hundred forty-six thousand, eight hundred fifty-five".