3685666717 has 8 divisors (see below), whose sum is σ = 3903316416. Its totient is φ = 3472800672.

The previous prime is 3685666687. The next prime is 3685666741. The reversal of 3685666717 is 7176665863.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3685666717 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 (3685616717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194328 + ... + 1197409.

It is an arithmetic number, because the mean of its divisors is an integer number (487914552).

Almost surely, 2^3685666717 is an apocalyptic number.

It is an amenable number.

3685666717 is a deficient number, since it is larger than the sum of its proper divisors (217649699).

3685666717 is a wasteful number, since it uses less digits than its factorization.

3685666717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391827.

The product of its digits is 7620480, while the sum is 55.

The square root of 3685666717 is about 60709.6921174865. The cubic root of 3685666717 is about 1544.6805813557.

The spelling of 3685666717 in words is "three billion, six hundred eighty-five million, six hundred sixty-six thousand, seven hundred seventeen".