98490321 has 6 divisors (see below), whose sum is σ = 142263810. Its totient is φ = 65660208.

The previous prime is 98490313. The next prime is 98490331. The reversal of 98490321 is 12309489.

It can be written as a sum of positive squares in only one way, i.e., 72846225 + 25644096 = 8535^2 + 5064^2 .

It is not a de Polignac number, because 98490321 - 2³ = 98490313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98490331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5471676 + ... + 5471693.

It is an arithmetic number, because the mean of its divisors is an integer number (23710635).

Almost surely, 2^98490321 is an apocalyptic number.

It is an amenable number.

98490321 is a deficient number, since it is larger than the sum of its proper divisors (43773489).

98490321 is a wasteful number, since it uses less digits than its factorization.

98490321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10943375 (or 10943372 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 98490321 is about 9924.2289876846. The cubic root of 98490321 is about 461.8112598362.

The spelling of 98490321 in words is "ninety-eight million, four hundred ninety thousand, three hundred twenty-one".