998147543 has 2 divisors, whose sum is σ = 998147544. Its totient is φ = 998147542.

The previous prime is 998147461. The next prime is 998147551. The reversal of 998147543 is 345741899.

It is a strong prime.

It is an emirp because it is prime and its reverse (345741899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998147543 - 2¹⁰ = 998146519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 998147491 and 998147500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998147243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499073771 + 499073772.

It is an arithmetic number, because the mean of its divisors is an integer number (499073772).

Almost surely, 2^998147543 is an apocalyptic number.

998147543 is a deficient number, since it is larger than the sum of its proper divisors (1).

998147543 is an equidigital number, since it uses as much as digits as its factorization.

998147543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 998147543 is about 31593.4731075898. The cubic root of 998147543 is about 999.3821326519.

The spelling of 998147543 in words is "nine hundred ninety-eight million, one hundred forty-seven thousand, five hundred forty-three".