8610248221 has 16 divisors (see below), whose sum is σ = 9123328000. Its totient is φ = 8103295728.

The previous prime is 8610248209. The next prime is 8610248239. The reversal of 8610248221 is 1228420168.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8610248221 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 (8610248321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3110380 + ... + 3113146.

It is an arithmetic number, because the mean of its divisors is an integer number (570208000).

Almost surely, 2^8610248221 is an apocalyptic number.

It is an amenable number.

8610248221 is a deficient number, since it is larger than the sum of its proper divisors (513079779).

8610248221 is a wasteful number, since it uses less digits than its factorization.

8610248221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 8610248221 is about 92791.4232081823. The cubic root of 8610248221 is about 2049.6131112836.

Adding to 8610248221 its reverse (1228420168), we get a palindrome (9838668389).

The spelling of 8610248221 in words is "eight billion, six hundred ten million, two hundred forty-eight thousand, two hundred twenty-one".