98337721 has 4 divisors (see below), whose sum is σ = 100736244. Its totient is φ = 95939200.

The previous prime is 98337713. The next prime is 98337763. The reversal of 98337721 is 12773389.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12773389 = 3019 ⋅4231.

It can be written as a sum of positive squares in 2 ways, for example, as 17139600 + 81198121 = 4140^2 + 9011^2 .

It is a cyclic number.

It is not a de Polignac number, because 98337721 - 2³ = 98337713 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98337781) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199200 + ... + 1199281.

It is an arithmetic number, because the mean of its divisors is an integer number (25184061).

Almost surely, 2^98337721 is an apocalyptic number.

It is an amenable number.

98337721 is a deficient number, since it is larger than the sum of its proper divisors (2398523).

98337721 is a wasteful number, since it uses less digits than its factorization.

98337721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398522.

The product of its digits is 63504, while the sum is 40.

The square root of 98337721 is about 9916.5377526635. The cubic root of 98337721 is about 461.5726278389.

The spelling of 98337721 in words is "ninety-eight million, three hundred thirty-seven thousand, seven hundred twenty-one".