9820409113 has 4 divisors (see below), whose sum is σ = 10159043940. Its totient is φ = 9481774288.

The previous prime is 9820409111. The next prime is 9820409119. The reversal of 9820409113 is 3119040289.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3119040289 = 443 ⋅7040723.

It can be written as a sum of positive squares in 2 ways, for example, as 7159190544 + 2661218569 = 84612^2 + 51587^2 .

It is a cyclic number.

It is not a de Polignac number, because 9820409113 - 2¹ = 9820409111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9820409111) 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, 169317370 + ... + 169317427.

It is an arithmetic number, because the mean of its divisors is an integer number (2539760985).

Almost surely, 2^9820409113 is an apocalyptic number.

It is an amenable number.

9820409113 is a deficient number, since it is larger than the sum of its proper divisors (338634827).

9820409113 is a wasteful number, since it uses less digits than its factorization.

9820409113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338634826.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 9820409113 is about 99097.9773406097. The cubic root of 9820409113 is about 2141.4594749803.

The spelling of 9820409113 in words is "nine billion, eight hundred twenty million, four hundred nine thousand, one hundred thirteen".