9798997315 has 4 divisors (see below), whose sum is σ = 11758796784. Its totient is φ = 7839197848.

The previous prime is 9798997309. The next prime is 9798997333. The reversal of 9798997315 is 5137998979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5137998979 = 10607 ⋅484397.

It is a cyclic number.

It is not a de Polignac number, because 9798997315 - 2¹⁷ = 9798866243 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979899727 + ... + 979899736.

It is an arithmetic number, because the mean of its divisors is an integer number (2939699196).

Almost surely, 2^9798997315 is an apocalyptic number.

9798997315 is a deficient number, since it is larger than the sum of its proper divisors (1959799469).

9798997315 is a wasteful number, since it uses less digits than its factorization.

9798997315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959799468.

The product of its digits is 38578680, while the sum is 67.

The square root of 9798997315 is about 98989.8849125505. The cubic root of 9798997315 is about 2139.9019749404.

The spelling of 9798997315 in words is "nine billion, seven hundred ninety-eight million, nine hundred ninety-seven thousand, three hundred fifteen".