98443561 has 4 divisors (see below), whose sum is σ = 99629712. Its totient is φ = 97257412.

The previous prime is 98443537. The next prime is 98443591. The reversal of 98443561 is 16534489.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98443561 - 2⁵ = 98443529 is a prime.

It is a super-2 number, since 2×98443561² = 19382269404721442, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98443511) 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 in 3 ways as a sum of consecutive naturals, for example, 592951 + ... + 593116.

It is an arithmetic number, because the mean of its divisors is an integer number (24907428).

Almost surely, 2^98443561 is an apocalyptic number.

It is an amenable number.

98443561 is a deficient number, since it is larger than the sum of its proper divisors (1186151).

98443561 is a wasteful number, since it uses less digits than its factorization.

98443561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186150.

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

The square root of 98443561 is about 9921.8728574801. The cubic root of 98443561 is about 461.7381639468.

The spelling of 98443561 in words is "ninety-eight million, four hundred forty-three thousand, five hundred sixty-one".