998360213 has 2 divisors, whose sum is σ = 998360214. Its totient is φ = 998360212.

The previous prime is 998360201. The next prime is 998360261. The reversal of 998360213 is 312063899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 704477764 + 293882449 = 26542^2 + 17143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998360213 is a prime.

It is a super-2 number, since 2×998360213² = 1993446229802810738, which contains 22 as substring.

It is equal to p_50768519 and since 998360213 and 50768519 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998360113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499180106 + 499180107.

It is an arithmetic number, because the mean of its divisors is an integer number (499180107).

Almost surely, 2^998360213 is an apocalyptic number.

It is an amenable number.

998360213 is a deficient number, since it is larger than the sum of its proper divisors (1).

998360213 is an equidigital number, since it uses as much as digits as its factorization.

998360213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 998360213 is about 31596.8386551566. The cubic root of 998360213 is about 999.4531052940.

The spelling of 998360213 in words is "nine hundred ninety-eight million, three hundred sixty thousand, two hundred thirteen".