3946867 has 4 divisors (see below), whose sum is σ = 3951000. Its totient is φ = 3942736.

The previous prime is 3946853. The next prime is 3946879. The reversal of 3946867 is 7686493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7686493 = 443 ⋅17351.

It is a cyclic number.

It is not a de Polignac number, because 3946867 - 2⁷ = 3946739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3946837) 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 3 ways as a sum of consecutive naturals, for example, 183 + ... + 2815.

It is an arithmetic number, because the mean of its divisors is an integer number (987750).

Almost surely, 2^3946867 is an apocalyptic number.

3946867 is a deficient number, since it is larger than the sum of its proper divisors (4133).

3946867 is a wasteful number, since it uses less digits than its factorization.

3946867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132.

The product of its digits is 217728, while the sum is 43.

The square root of 3946867 is about 1986.6723433923. The cubic root of 3946867 is about 158.0341084297.

The spelling of 3946867 in words is "three million, nine hundred forty-six thousand, eight hundred sixty-seven".