3667871 has 2 divisors, whose sum is σ = 3667872. Its totient is φ = 3667870.

The previous prime is 3667849. The next prime is 3667897. The reversal of 3667871 is 1787663.

It is a weak prime.

It is an emirp because it is prime and its reverse (1787663) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3667871 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3667841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833935 + 1833936.

It is an arithmetic number, because the mean of its divisors is an integer number (1833936).

Almost surely, 2^3667871 is an apocalyptic number.

3667871 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667871 is an equidigital number, since it uses as much as digits as its factorization.

3667871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 3667871 is about 1915.1686609800. The cubic root of 3667871 is about 154.2190479256.

The spelling of 3667871 in words is "three million, six hundred sixty-seven thousand, eight hundred seventy-one".