3668386 has 4 divisors (see below), whose sum is σ = 5502582. Its totient is φ = 1834192.

The previous prime is 3668383. The next prime is 3668389. The reversal of 3668386 is 6838663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6838663 = 13 ⋅526051.

It is an interprime number because it is at equal distance from previous prime (3668383) and next prime (3668389).

It can be written as a sum of positive squares in only one way, i.e., 2706025 + 962361 = 1645^2 + 981^2 .

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3668381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917095 + ... + 917098.

Almost surely, 2^3668386 is an apocalyptic number.

3668386 is a deficient number, since it is larger than the sum of its proper divisors (1834196).

3668386 is a wasteful number, since it uses less digits than its factorization.

3668386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834195.

The product of its digits is 124416, while the sum is 40.

The square root of 3668386 is about 1915.3031091710. The cubic root of 3668386 is about 154.2262654725.

The spelling of 3668386 in words is "three million, six hundred sixty-eight thousand, three hundred eighty-six".