998133419 has 2 divisors, whose sum is σ = 998133420. Its totient is φ = 998133418.

The previous prime is 998133413. The next prime is 998133421. The reversal of 998133419 is 914331899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998133419 - 2²⁸ = 729697963 is a prime.

It is a super-2 number, since 2×998133419² = 1992540644249259122, which contains 22 as substring.

Together with 998133421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (998133413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499066709 + 499066710.

It is an arithmetic number, because the mean of its divisors is an integer number (499066710).

Almost surely, 2^998133419 is an apocalyptic number.

998133419 is a deficient number, since it is larger than the sum of its proper divisors (1).

998133419 is an equidigital number, since it uses as much as digits as its factorization.

998133419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 47.

The square root of 998133419 is about 31593.2495796175. The cubic root of 998133419 is about 999.3774188064.

The spelling of 998133419 in words is "nine hundred ninety-eight million, one hundred thirty-three thousand, four hundred nineteen".