3946655 has 4 divisors (see below), whose sum is σ = 4735992. Its totient is φ = 3157320.

The previous prime is 3946643. The next prime is 3946673. The reversal of 3946655 is 5566493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5566493 = 113 ⋅49261.

It is not a de Polignac number, because 3946655 - 2⁸ = 3946399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 394661 + ... + 394670.

It is an arithmetic number, because the mean of its divisors is an integer number (1183998).

Almost surely, 2^3946655 is an apocalyptic number.

3946655 is a deficient number, since it is larger than the sum of its proper divisors (789337).

3946655 is an equidigital number, since it uses as much as digits as its factorization.

3946655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789336.

The product of its digits is 97200, while the sum is 38.

The square root of 3946655 is about 1986.6189871236. The cubic root of 3946655 is about 158.0312788579.

The spelling of 3946655 in words is "three million, nine hundred forty-six thousand, six hundred fifty-five".