9803098381 has 4 divisors (see below), whose sum is σ = 9803374812. Its totient is φ = 9802821952.

The previous prime is 9803098373. The next prime is 9803098423. The reversal of 9803098381 is 1838903089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1838903089 = 7219 ⋅254731.

It can be written as a sum of positive squares in 2 ways, for example, as 1140142756 + 8662955625 = 33766^2 + 93075^2 .

It is a cyclic number.

It is not a de Polignac number, because 9803098381 - 2³ = 9803098373 is a prime.

It is a super-2 number, since 2×9803098381² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9803098301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75550 + ... + 159103.

It is an arithmetic number, because the mean of its divisors is an integer number (2450843703).

Almost surely, 2^9803098381 is an apocalyptic number.

It is an amenable number.

9803098381 is a deficient number, since it is larger than the sum of its proper divisors (276431).

9803098381 is a wasteful number, since it uses less digits than its factorization.

9803098381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276430.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 9803098381 is about 99010.5973166509. The cubic root of 9803098381 is about 2140.2004631410.

The spelling of 9803098381 in words is "nine billion, eight hundred three million, ninety-eight thousand, three hundred eighty-one".