9808399 has 2 divisors, whose sum is σ = 9808400. Its totient is φ = 9808398.

The previous prime is 9808391. The next prime is 9808417. The reversal of 9808399 is 9938089.

9808399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9808399 - 2³ = 9808391 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9808391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4904199 + 4904200.

It is an arithmetic number, because the mean of its divisors is an integer number (4904200).

Almost surely, 2^9808399 is an apocalyptic number.

9808399 is a deficient number, since it is larger than the sum of its proper divisors (1).

9808399 is an equidigital number, since it uses as much as digits as its factorization.

9808399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 9808399 is about 3131.8363622642. The cubic root of 9808399 is about 214.0586135192.

The spelling of 9808399 in words is "nine million, eight hundred eight thousand, three hundred ninety-nine".