998552213 has 2 divisors, whose sum is σ = 998552214. Its totient is φ = 998552212.

The previous prime is 998552197. The next prime is 998552251. The reversal of 998552213 is 312255899.

998552213 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., 989920369 + 8631844 = 31463^2 + 2938^2 .

It is a cyclic number.

It is not a de Polignac number, because 998552213 - 2⁴ = 998552197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998512213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499276106 + 499276107.

It is an arithmetic number, because the mean of its divisors is an integer number (499276107).

Almost surely, 2^998552213 is an apocalyptic number.

It is an amenable number.

998552213 is a deficient number, since it is larger than the sum of its proper divisors (1).

998552213 is an equidigital number, since it uses as much as digits as its factorization.

998552213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 44.

The square root of 998552213 is about 31599.8767877345. The cubic root of 998552213 is about 999.5171712472.

The spelling of 998552213 in words is "nine hundred ninety-eight million, five hundred fifty-two thousand, two hundred thirteen".