3660613 has 6 divisors (see below), whose sum is σ = 4023782. Its totient is φ = 3327720.

The previous prime is 3660607. The next prime is 3660617. The reversal of 3660613 is 3160663.

It can be written as a sum of positive squares in only one way, i.e., 3621409 + 39204 = 1903^2 + 198^2 .

It is not a de Polignac number, because 3660613 - 2⁵ = 3660581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3660617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15006 + ... + 15247.

Almost surely, 2^3660613 is an apocalyptic number.

It is an amenable number.

3660613 is a deficient number, since it is larger than the sum of its proper divisors (363169).

3660613 is a wasteful number, since it uses less digits than its factorization.

3660613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30275 (or 30264 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 3660613 is about 1913.2728503797. The cubic root of 3660613 is about 154.1172576346.

The spelling of 3660613 in words is "three million, six hundred sixty thousand, six hundred thirteen".