98385921 has 10 divisors (see below), whose sum is σ = 146971682. Its totient is φ = 65590560.

The previous prime is 98385901. The next prime is 98385941. The reversal of 98385921 is 12958389.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (98385901) and next prime (98385941).

It can be written as a sum of positive squares in only one way, i.e., 92910321 + 5475600 = 9639^2 + 2340^2 .

It is not a de Polignac number, because 98385921 - 2¹³ = 98377729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98385901) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 607240 + ... + 607401.

It is a Proth number, since it is equal to 6005 ⋅ 2¹⁴ + 1 and 6005 < 2¹⁴.

Almost surely, 2^98385921 is an apocalyptic number.

It is an amenable number.

98385921 is a deficient number, since it is larger than the sum of its proper divisors (48585761).

98385921 is a wasteful number, since it uses less digits than its factorization.

98385921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214653 (or 1214644 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 98385921 is about 9918.9677386309. The cubic root of 98385921 is about 461.6480284296.

The spelling of 98385921 in words is "ninety-eight million, three hundred eighty-five thousand, nine hundred twenty-one".