998361071 has 2 divisors, whose sum is σ = 998361072. Its totient is φ = 998361070.

The previous prime is 998360969. The next prime is 998361079. The reversal of 998361071 is 170163899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998361071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998361079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499180535 + 499180536.

It is an arithmetic number, because the mean of its divisors is an integer number (499180536).

Almost surely, 2^998361071 is an apocalyptic number.

998361071 is a deficient number, since it is larger than the sum of its proper divisors (1).

998361071 is an equidigital number, since it uses as much as digits as its factorization.

998361071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 998361071 is about 31596.8522324614. The cubic root of 998361071 is about 999.4533916070.

The spelling of 998361071 in words is "nine hundred ninety-eight million, three hundred sixty-one thousand, seventy-one".