98285521 has 4 divisors (see below), whose sum is σ = 99631972. Its totient is φ = 96939072.

The previous prime is 98285497. The next prime is 98285549. The reversal of 98285521 is 12558289.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58140625 + 40144896 = 7625^2 + 6336^2 .

It is a cyclic number.

It is not a de Polignac number, because 98285521 - 2⁵ = 98285489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98282521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673116 + ... + 673261.

It is an arithmetic number, because the mean of its divisors is an integer number (24907993).

Almost surely, 2^98285521 is an apocalyptic number.

It is an amenable number.

98285521 is a deficient number, since it is larger than the sum of its proper divisors (1346451).

98285521 is a wasteful number, since it uses less digits than its factorization.

98285521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346450.

The product of its digits is 57600, while the sum is 40.

The square root of 98285521 is about 9913.9054363051. The cubic root of 98285521 is about 461.4909421425.

Subtracting from 98285521 its product of digits (57600), we obtain a square (98227921 = 9911²).

The spelling of 98285521 in words is "ninety-eight million, two hundred eighty-five thousand, five hundred twenty-one".