9800425609 has 4 divisors (see below), whose sum is σ = 10554304516. Its totient is φ = 9046546704.

The previous prime is 9800425597. The next prime is 9800425633. The reversal of 9800425609 is 9065240089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9065240089 = 17 ⋅533249417.

It can be written as a sum of positive squares in 2 ways, for example, as 1459622025 + 8340803584 = 38205^2 + 91328^2 .

It is not a de Polignac number, because 9800425609 - 2⁵ = 9800425577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9800425409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376939434 + ... + 376939459.

It is an arithmetic number, because the mean of its divisors is an integer number (2638576129).

Almost surely, 2^9800425609 is an apocalyptic number.

It is an amenable number.

9800425609 is a deficient number, since it is larger than the sum of its proper divisors (753878907).

9800425609 is a wasteful number, since it uses less digits than its factorization.

9800425609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753878906.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 9800425609 is about 98997.0989928493. The cubic root of 9800425609 is about 2140.0059400219.

The spelling of 9800425609 in words is "nine billion, eight hundred million, four hundred twenty-five thousand, six hundred nine".