3966911 has 4 divisors (see below), whose sum is σ = 4272072. Its totient is φ = 3661752.

The previous prime is 3966889. The next prime is 3966913. The reversal of 3966911 is 1196693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1196693 = 31 ⋅38603.

It is a cyclic number.

It is not a de Polignac number, because 3966911 - 2¹⁰ = 3965887 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 (3966913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152561 + ... + 152586.

It is an arithmetic number, because the mean of its divisors is an integer number (1068018).

Almost surely, 2^3966911 is an apocalyptic number.

3966911 is a deficient number, since it is larger than the sum of its proper divisors (305161).

3966911 is a wasteful number, since it uses less digits than its factorization.

3966911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305160.

The product of its digits is 8748, while the sum is 35.

The square root of 3966911 is about 1991.7105713431. The cubic root of 3966911 is about 158.3011800515.

The spelling of 3966911 in words is "three million, nine hundred sixty-six thousand, nine hundred eleven".