998100449 has 2 divisors, whose sum is σ = 998100450. Its totient is φ = 998100448.

The previous prime is 998100437. The next prime is 998100451. The reversal of 998100449 is 944001899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 715188049 + 282912400 = 26743^2 + 16820^2 .

It is an emirp because it is prime and its reverse (944001899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998100449 - 2⁸ = 998100193 is a prime.

Together with 998100451, 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 (998100349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499050224 + 499050225.

It is an arithmetic number, because the mean of its divisors is an integer number (499050225).

Almost surely, 2^998100449 is an apocalyptic number.

It is an amenable number.

998100449 is a deficient number, since it is larger than the sum of its proper divisors (1).

998100449 is an equidigital number, since it uses as much as digits as its factorization.

998100449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 998100449 is about 31592.7277866284. The cubic root of 998100449 is about 999.3664149881.

The spelling of 998100449 in words is "nine hundred ninety-eight million, one hundred thousand, four hundred forty-nine".