408998543 has 2 divisors, whose sum is σ = 408998544. Its totient is φ = 408998542.

The previous prime is 408998539. The next prime is 408998573. The reversal of 408998543 is 345899804.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 408998543 - 2² = 408998539 is a prime.

It is a super-2 number, since 2×408998543² = 334559616352245698, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 408998491 and 408998500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408998573) 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 as a sum of consecutive naturals, namely, 204499271 + 204499272.

It is an arithmetic number, because the mean of its divisors is an integer number (204499272).

Almost surely, 2^408998543 is an apocalyptic number.

408998543 is a deficient number, since it is larger than the sum of its proper divisors (1).

408998543 is an equidigital number, since it uses as much as digits as its factorization.

408998543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 408998543 is about 20223.7123941180. The cubic root of 408998543 is about 742.2905306093.

The spelling of 408998543 in words is "four hundred eight million, nine hundred ninety-eight thousand, five hundred forty-three".