98530821 has 12 divisors (see below), whose sum is σ = 142414272. Its totient is φ = 65644776.

The previous prime is 98530819. The next prime is 98530829. The reversal of 98530821 is 12803589.

It is not a de Polignac number, because 98530821 - 2¹ = 98530819 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98530829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18190 + ... + 22976.

It is an arithmetic number, because the mean of its divisors is an integer number (11867856).

Almost surely, 2^98530821 is an apocalyptic number.

It is an amenable number.

98530821 is a deficient number, since it is larger than the sum of its proper divisors (43883451).

98530821 is a wasteful number, since it uses less digits than its factorization.

98530821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080 (or 7077 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 98530821 is about 9926.2692387422. The cubic root of 98530821 is about 461.8745513108.

The spelling of 98530821 in words is "ninety-eight million, five hundred thirty thousand, eight hundred twenty-one".