3667669 has 2 divisors, whose sum is σ = 3667670. Its totient is φ = 3667668.

The previous prime is 3667637. The next prime is 3667673. The reversal of 3667669 is 9667663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3659569 + 8100 = 1913^2 + 90^2 .

It is an emirp because it is prime and its reverse (9667663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3667669 - 2⁵ = 3667637 is a prime.

It is a super-2 number, since 2×3667669² = 26903591787122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3667679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833834 + 1833835.

It is an arithmetic number, because the mean of its divisors is an integer number (1833835).

Almost surely, 2^3667669 is an apocalyptic number.

It is an amenable number.

3667669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667669 is an equidigital number, since it uses as much as digits as its factorization.

3667669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 43.

The square root of 3667669 is about 1915.1159233843. The cubic root of 3667669 is about 154.2162167810.

The spelling of 3667669 in words is "three million, six hundred sixty-seven thousand, six hundred sixty-nine".