8998553 has 2 divisors, whose sum is σ = 8998554. Its totient is φ = 8998552.

The previous prime is 8998547. The next prime is 8998579. The reversal of 8998553 is 3558998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4721929 + 4276624 = 2173^2 + 2068^2 .

It is a cyclic number.

It is not a de Polignac number, because 8998553 - 2⁶ = 8998489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8998498 and 8998507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8991553) 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 as a sum of consecutive naturals, namely, 4499276 + 4499277.

It is an arithmetic number, because the mean of its divisors is an integer number (4499277).

Almost surely, 2^8998553 is an apocalyptic number.

It is an amenable number.

8998553 is a deficient number, since it is larger than the sum of its proper divisors (1).

8998553 is an equidigital number, since it uses as much as digits as its factorization.

8998553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 47.

The square root of 8998553 is about 2999.7588236390. The cubic root of 8998553 is about 207.9972339992.

The spelling of 8998553 in words is "eight million, nine hundred ninety-eight thousand, five hundred fifty-three".