3667385 has 4 divisors (see below), whose sum is σ = 4400868. Its totient is φ = 2933904.

The previous prime is 3667357. The next prime is 3667387. The reversal of 3667385 is 5837663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5837663 = 13 ⋅449051.

It can be written as a sum of positive squares in 2 ways, for example, as 1605289 + 2062096 = 1267^2 + 1436^2 .

It is a cyclic number.

It is not a de Polignac number, because 3667385 - 2⁸ = 3667129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3667387) 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, 366734 + ... + 366743.

It is an arithmetic number, because the mean of its divisors is an integer number (1100217).

Almost surely, 2^3667385 is an apocalyptic number.

It is an amenable number.

3667385 is a deficient number, since it is larger than the sum of its proper divisors (733483).

3667385 is an equidigital number, since it uses as much as digits as its factorization.

3667385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733482.

The product of its digits is 90720, while the sum is 38.

The square root of 3667385 is about 1915.0417750013. The cubic root of 3667385 is about 154.2122361840.

The spelling of 3667385 in words is "three million, six hundred sixty-seven thousand, three hundred eighty-five".