3667897 has 2 divisors, whose sum is σ = 3667898. Its totient is φ = 3667896.

The previous prime is 3667871. The next prime is 3667907. The reversal of 3667897 is 7987663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2019241 + 1648656 = 1421^2 + 1284^2 .

It is an emirp because it is prime and its reverse (7987663) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3667897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3667837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833948 + 1833949.

It is an arithmetic number, because the mean of its divisors is an integer number (1833949).

Almost surely, 2^3667897 is an apocalyptic number.

It is an amenable number.

3667897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667897 is an equidigital number, since it uses as much as digits as its factorization.

3667897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 3667897 is about 1915.1754488819. The cubic root of 3667897 is about 154.2194123228.

It can be divided in two parts, 366789 and 7, that added together give a triangular number (366796 = T₈₅₆).

The spelling of 3667897 in words is "three million, six hundred sixty-seven thousand, eight hundred ninety-seven".