9898783 has 2 divisors, whose sum is σ = 9898784. Its totient is φ = 9898782.

The previous prime is 9898771. The next prime is 9898793. The reversal of 9898783 is 3878989.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9898783 - 2⁹ = 9898271 is a prime.

It is an alternating number because its digits alternate between odd and even.

9898783 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9898783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9898723) 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 as a sum of consecutive naturals, namely, 4949391 + 4949392.

It is an arithmetic number, because the mean of its divisors is an integer number (4949392).

Almost surely, 2^9898783 is an apocalyptic number.

9898783 is a deficient number, since it is larger than the sum of its proper divisors (1).

9898783 is an equidigital number, since it uses as much as digits as its factorization.

9898783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 9898783 is about 3146.2331445715. The cubic root of 9898783 is about 214.7141179626.

The spelling of 9898783 in words is "nine million, eight hundred ninety-eight thousand, seven hundred eighty-three".