8197949215 has 16 divisors (see below), whose sum is σ = 10180573920. Its totient is φ = 6332376960.

The previous prime is 8197949213. The next prime is 8197949231. The reversal of 8197949215 is 5129497918.

It is not a de Polignac number, because 8197949215 - 2¹ = 8197949213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8197949213) 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, 144900 + ... + 193369.

It is an arithmetic number, because the mean of its divisors is an integer number (636285870).

Almost surely, 2^8197949215 is an apocalyptic number.

8197949215 is a deficient number, since it is larger than the sum of its proper divisors (1982624705).

8197949215 is a wasteful number, since it uses less digits than its factorization.

8197949215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338442.

The product of its digits is 1632960, while the sum is 55.

The square root of 8197949215 is about 90542.5271074317. The cubic root of 8197949215 is about 2016.3615527135.

The spelling of 8197949215 in words is "eight billion, one hundred ninety-seven million, nine hundred forty-nine thousand, two hundred fifteen".