9800890385 has 16 divisors (see below), whose sum is σ = 13817200320. Its totient is φ = 6579618240.

The previous prime is 9800890381. The next prime is 9800890391. The reversal of 9800890385 is 5830980089.

It is not a de Polignac number, because 9800890385 - 2² = 9800890381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9800890381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6853055 + ... + 6854484.

It is an arithmetic number, because the mean of its divisors is an integer number (863575020).

Almost surely, 2^9800890385 is an apocalyptic number.

It is an amenable number.

9800890385 is a deficient number, since it is larger than the sum of its proper divisors (4016309935).

9800890385 is a wasteful number, since it uses less digits than its factorization.

9800890385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13707568.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 9800890385 is about 98999.4463873410. The cubic root of 9800890385 is about 2140.0397687459.

The spelling of 9800890385 in words is "nine billion, eight hundred million, eight hundred ninety thousand, three hundred eighty-five".