8650316221 has 4 divisors (see below), whose sum is σ = 8650966012. Its totient is φ = 8649666432.

The previous prime is 8650316201. The next prime is 8650316251. The reversal of 8650316221 is 1226130568.

8650316221 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3983376996 + 4666939225 = 63114^2 + 68315^2 .

It is a cyclic number.

It is not a de Polignac number, because 8650316221 - 2²⁵ = 8616761789 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 (8650316201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304500 + ... + 331693.

It is an arithmetic number, because the mean of its divisors is an integer number (2162741503).

Almost surely, 2^8650316221 is an apocalyptic number.

It is an amenable number.

8650316221 is a deficient number, since it is larger than the sum of its proper divisors (649791).

8650316221 is a wasteful number, since it uses less digits than its factorization.

8650316221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649790.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 8650316221 is about 93007.0761877826. The cubic root of 8650316221 is about 2052.7875005244.

Adding to 8650316221 its reverse (1226130568), we get a palindrome (9876446789).

The spelling of 8650316221 in words is "eight billion, six hundred fifty million, three hundred sixteen thousand, two hundred twenty-one".