8398020097 has 4 divisors (see below), whose sum is σ = 8430697476. Its totient is φ = 8365342720.

The previous prime is 8398020053. The next prime is 8398020131. The reversal of 8398020097 is 7900208938.

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 5857759296 + 2540260801 = 76536^2 + 50401^2 .

It is a cyclic number.

It is not a de Polignac number, because 8398020097 - 2¹⁵ = 8397987329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8398020047) 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, 16338304 + ... + 16338817.

It is an arithmetic number, because the mean of its divisors is an integer number (2107674369).

Almost surely, 2^8398020097 is an apocalyptic number.

It is an amenable number.

8398020097 is a deficient number, since it is larger than the sum of its proper divisors (32677379).

8398020097 is a wasteful number, since it uses less digits than its factorization.

8398020097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32677378.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 8398020097 is about 91640.7120061821. The cubic root of 8398020097 is about 2032.6329894770.

The spelling of 8398020097 in words is "eight billion, three hundred ninety-eight million, twenty thousand, ninety-seven".