3605715749 has 16 divisors (see below), whose sum is σ = 3747152640. Its totient is φ = 3466774080.

The previous prime is 3605715697. The next prime is 3605715761. The reversal of 3605715749 is 9475175063.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3605715749 - 2¹² = 3605711653 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3602715749) 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 15 ways as a sum of consecutive naturals, for example, 1866314 + ... + 1868244.

It is an arithmetic number, because the mean of its divisors is an integer number (234197040).

Almost surely, 2^3605715749 is an apocalyptic number.

It is an amenable number.

3605715749 is a deficient number, since it is larger than the sum of its proper divisors (141436891).

3605715749 is a wasteful number, since it uses less digits than its factorization.

3605715749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540.

The product of its (nonzero) digits is 793800, while the sum is 47.

The square root of 3605715749 is about 60047.6123505340. The cubic root of 3605715749 is about 1533.4295529989.

The spelling of 3605715749 in words is "three billion, six hundred five million, seven hundred fifteen thousand, seven hundred forty-nine".