3660001 has 8 divisors (see below), whose sum is σ = 3744104. Its totient is φ = 3576960.

The previous prime is 3659993. The next prime is 3660011. The reversal of 3660001 is 1000663.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 3629025 = 176^2 + 1905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3660001 - 2³ = 3659993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3660011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13075 + ... + 13351.

It is an arithmetic number, because the mean of its divisors is an integer number (468013).

Almost surely, 2^3660001 is an apocalyptic number.

It is an amenable number.

3660001 is a deficient number, since it is larger than the sum of its proper divisors (84103).

3660001 is a wasteful number, since it uses less digits than its factorization.

3660001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3660001 is about 1913.1129083251. The cubic root of 3660001 is about 154.1086684522.

Adding to 3660001 its reverse (1000663), we get a palindrome (4660664).

The spelling of 3660001 in words is "three million, six hundred sixty thousand, one".