98561443 has 2 divisors, whose sum is σ = 98561444. Its totient is φ = 98561442.

The previous prime is 98561423. The next prime is 98561453. The reversal of 98561443 is 34416589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98561443 - 2¹³ = 98553251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98561396 and 98561405.

It is not a weakly prime, because it can be changed into another prime (98561423) 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, 49280721 + 49280722.

It is an arithmetic number, because the mean of its divisors is an integer number (49280722).

Almost surely, 2^98561443 is an apocalyptic number.

98561443 is a deficient number, since it is larger than the sum of its proper divisors (1).

98561443 is an equidigital number, since it uses as much as digits as its factorization.

98561443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 98561443 is about 9927.8115916852. The cubic root of 98561443 is about 461.9223944034.

The spelling of 98561443 in words is "ninety-eight million, five hundred sixty-one thousand, four hundred forty-three".