3967111 has 2 divisors, whose sum is σ = 3967112. Its totient is φ = 3967110.

The previous prime is 3967087. The next prime is 3967121. The reversal of 3967111 is 1117693.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3967111 is a prime.

3967111 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3967111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3967121) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1983555 + 1983556.

It is an arithmetic number, because the mean of its divisors is an integer number (1983556).

Almost surely, 2^3967111 is an apocalyptic number.

3967111 is a deficient number, since it is larger than the sum of its proper divisors (1).

3967111 is an equidigital number, since it uses as much as digits as its factorization.

3967111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 28.

The square root of 3967111 is about 1991.7607788085. The cubic root of 3967111 is about 158.3038403669.

The spelling of 3967111 in words is "three million, nine hundred sixty-seven thousand, one hundred eleven".