3657882217 has 4 divisors (see below), whose sum is σ = 3990416976. Its totient is φ = 3325347460.

The previous prime is 3657882203. The next prime is 3657882229. The reversal of 3657882217 is 7122887563.

3657882217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7122887563 = 11 ⋅647535233.

It is a cyclic number.

It is not a de Polignac number, because 3657882217 - 2⁷ = 3657882089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3657882517) 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, 166267363 + ... + 166267384.

It is an arithmetic number, because the mean of its divisors is an integer number (997604244).

Almost surely, 2^3657882217 is an apocalyptic number.

It is an amenable number.

3657882217 is a deficient number, since it is larger than the sum of its proper divisors (332534759).

3657882217 is a wasteful number, since it uses less digits than its factorization.

3657882217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332534758.

The product of its digits is 1128960, while the sum is 49.

The square root of 3657882217 is about 60480.4283797660. The cubic root of 3657882217 is about 1540.7892475763.

The spelling of 3657882217 in words is "three billion, six hundred fifty-seven million, eight hundred eighty-two thousand, two hundred seventeen".