3668608 has 16 divisors (see below), whose sum is σ = 7308810. Its totient is φ = 1834240.

The previous prime is 3668603. The next prime is 3668611. The reversal of 3668608 is 8068663.

It can be written as a sum of positive squares in only one way, i.e., 2050624 + 1617984 = 1432^2 + 1272^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3668603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14203 + ... + 14458.

Almost surely, 2^3668608 is an apocalyptic number.

It is an amenable number.

3668608 is a deficient number, since it is larger than the sum of its proper divisors (3640202).

3668608 is an equidigital number, since it uses as much as digits as its factorization.

3668608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28675 (or 28663 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 3668608 is about 1915.3610625676. The cubic root of 3668608 is about 154.2293765173.

It can be divided in two parts, 36 and 68608, that added together give a square (68644 = 262²).

The spelling of 3668608 in words is "three million, six hundred sixty-eight thousand, six hundred eight".