98823521 has 2 divisors, whose sum is σ = 98823522. Its totient is φ = 98823520.

The previous prime is 98823463. The next prime is 98823581. The reversal of 98823521 is 12532889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83923921 + 14899600 = 9161^2 + 3860^2 .

It is a cyclic number.

It is not a de Polignac number, because 98823521 - 2¹⁰ = 98822497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98823581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49411760 + 49411761.

It is an arithmetic number, because the mean of its divisors is an integer number (49411761).

Almost surely, 2^98823521 is an apocalyptic number.

It is an amenable number.

98823521 is a deficient number, since it is larger than the sum of its proper divisors (1).

98823521 is an equidigital number, since it uses as much as digits as its factorization.

98823521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 98823521 is about 9941.0020118698. The cubic root of 98823521 is about 462.3314541442.

The spelling of 98823521 in words is "ninety-eight million, eight hundred twenty-three thousand, five hundred twenty-one".