3684515663 has 4 divisors (see below), whose sum is σ = 3878437560. Its totient is φ = 3490593768.

The previous prime is 3684515623. The next prime is 3684515669. The reversal of 3684515663 is 3665154863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3665154863 = 4139 ⋅885517.

It is a cyclic number.

It is not a de Polignac number, because 3684515663 - 2⁶ = 3684515599 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 (3684515669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96960920 + ... + 96960957.

It is an arithmetic number, because the mean of its divisors is an integer number (969609390).

Almost surely, 2^3684515663 is an apocalyptic number.

3684515663 is a deficient number, since it is larger than the sum of its proper divisors (193921897).

3684515663 is a wasteful number, since it uses less digits than its factorization.

3684515663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193921896.

The product of its digits is 1555200, while the sum is 47.

The square root of 3684515663 is about 60700.2113917242. The cubic root of 3684515663 is about 1544.5197605305.

The spelling of 3684515663 in words is "three billion, six hundred eighty-four million, five hundred fifteen thousand, six hundred sixty-three".