9918533 has 2 divisors, whose sum is σ = 9918534. Its totient is φ = 9918532.

The previous prime is 9918523. The next prime is 9918547. The reversal of 9918533 is 3358199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7491169 + 2427364 = 2737^2 + 1558^2 .

It is a cyclic number.

It is not a de Polignac number, because 9918533 - 2²⁰ = 8869957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9918523) 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, 4959266 + 4959267.

It is an arithmetic number, because the mean of its divisors is an integer number (4959267).

Almost surely, 2^9918533 is an apocalyptic number.

It is an amenable number.

9918533 is a deficient number, since it is larger than the sum of its proper divisors (1).

9918533 is an equidigital number, since it uses as much as digits as its factorization.

9918533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 9918533 is about 3149.3702545112. The cubic root of 9918533 is about 214.8568219251.

The spelling of 9918533 in words is "nine million, nine hundred eighteen thousand, five hundred thirty-three".