998386213 has 4 divisors (see below), whose sum is σ = 1089148608. Its totient is φ = 907623820.

The previous prime is 998386211. The next prime is 998386241. The reversal of 998386213 is 312683899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 998386213 - 2¹ = 998386211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998386211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45381181 + ... + 45381202.

It is an arithmetic number, because the mean of its divisors is an integer number (272287152).

Almost surely, 2^998386213 is an apocalyptic number.

It is an amenable number.

998386213 is a deficient number, since it is larger than the sum of its proper divisors (90762395).

998386213 is a wasteful number, since it uses less digits than its factorization.

998386213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90762394.

The product of its digits is 559872, while the sum is 49.

The square root of 998386213 is about 31597.2500860439. The cubic root of 998386213 is about 999.4617813727.

The spelling of 998386213 in words is "nine hundred ninety-eight million, three hundred eighty-six thousand, two hundred thirteen".