98605521 has 12 divisors (see below), whose sum is σ = 162777472. Its totient is φ = 56345976.

The previous prime is 98605501. The next prime is 98605523. The reversal of 98605521 is 12550689.

It is a happy number.

It is not a de Polignac number, because 98605521 - 2⁵ = 98605489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98605523) 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 11 ways as a sum of consecutive naturals, for example, 782521 + ... + 782646.

Almost surely, 2^98605521 is an apocalyptic number.

It is an amenable number.

98605521 is a deficient number, since it is larger than the sum of its proper divisors (64171951).

98605521 is a wasteful number, since it uses less digits than its factorization.

98605521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565180 (or 1565177 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 98605521 is about 9930.0312688329. The cubic root of 98605521 is about 461.9912434389.

The spelling of 98605521 in words is "ninety-eight million, six hundred five thousand, five hundred twenty-one".