9898917394 has 4 divisors (see below), whose sum is σ = 14848376094. Its totient is φ = 4949458696.

The previous prime is 9898917389. The next prime is 9898917401. The reversal of 9898917394 is 4937198989.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8986092025 + 912825369 = 94795^2 + 30213^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2474729347 + ... + 2474729350.

Almost surely, 2^9898917394 is an apocalyptic number.

9898917394 is a deficient number, since it is larger than the sum of its proper divisors (4949458700).

9898917394 is a wasteful number, since it uses less digits than its factorization.

9898917394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949458699.

The product of its digits is 35271936, while the sum is 67.

The square root of 9898917394 is about 99493.3032620789. The cubic root of 9898917394 is about 2147.1508966983.

The spelling of 9898917394 in words is "nine billion, eight hundred ninety-eight million, nine hundred seventeen thousand, three hundred ninety-four".