998941633 has 2 divisors, whose sum is σ = 998941634. Its totient is φ = 998941632.

The previous prime is 998941631. The next prime is 998941661. The reversal of 998941633 is 336149899.

998941633 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 can be written as a sum of positive squares in only one way, i.e., 981694224 + 17247409 = 31332^2 + 4153^2 .

It is a cyclic number.

It is not a de Polignac number, because 998941633 - 2¹ = 998941631 is a prime.

It is a super-2 number, since 2×998941633² = 1995768772281413378, which contains 22 as substring.

Together with 998941631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (998941631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499470816 + 499470817.

It is an arithmetic number, because the mean of its divisors is an integer number (499470817).

Almost surely, 2^998941633 is an apocalyptic number.

It is an amenable number.

998941633 is a deficient number, since it is larger than the sum of its proper divisors (1).

998941633 is an equidigital number, since it uses as much as digits as its factorization.

998941633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 52.

The square root of 998941633 is about 31606.0379199924. The cubic root of 998941633 is about 999.6470864667.

The spelling of 998941633 in words is "nine hundred ninety-eight million, nine hundred forty-one thousand, six hundred thirty-three".