3665607213 has 8 divisors (see below), whose sum is σ = 4915728288. Its totient is φ = 2429612144.

The previous prime is 3665607193. The next prime is 3665607217. The reversal of 3665607213 is 3127065663.

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 3665607213 - 2⁶ = 3665607149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665607217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3530895 + ... + 3531932.

It is an arithmetic number, because the mean of its divisors is an integer number (614466036).

Almost surely, 2^3665607213 is an apocalyptic number.

It is an amenable number.

3665607213 is a deficient number, since it is larger than the sum of its proper divisors (1250121075).

3665607213 is a wasteful number, since it uses less digits than its factorization.

3665607213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7063003.

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 3665607213 is about 60544.2582991980. The cubic root of 3665607213 is about 1541.8731371925.

The spelling of 3665607213 in words is "three billion, six hundred sixty-five million, six hundred seven thousand, two hundred thirteen".