8497221498 has 24 divisors (see below), whose sum is σ = 18417193236. Its totient is φ = 2831400000.

The previous prime is 8497221463. The next prime is 8497221521. The reversal of 8497221498 is 8941227948.

8497221498 is a `hidden beast` number, since 8 + 497 + 2 + 2 + 149 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8073561609 + 423659889 = 89853^2 + 20583^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31003 + ... + 133998.

Almost surely, 2^8497221498 is an apocalyptic number.

8497221498 is an abundant number, since it is smaller than the sum of its proper divisors (9919971738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8497221498 is a wasteful number, since it uses less digits than its factorization.

8497221498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167870 (or 167867 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 8497221498 is about 92180.3747985438. The cubic root of 8497221498 is about 2040.6051563939.

The spelling of 8497221498 in words is "eight billion, four hundred ninety-seven million, two hundred twenty-one thousand, four hundred ninety-eight".