98724097 has 4 divisors (see below), whose sum is σ = 99269716. Its totient is φ = 98178480.

The previous prime is 98724077. The next prime is 98724121. The reversal of 98724097 is 79042789.

It is a Cunningham number, because it is equal to 9936²+1.

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 1089936 + 97634161 = 1044^2 + 9881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98724097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98724077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272538 + ... + 272899.

It is an arithmetic number, because the mean of its divisors is an integer number (24817429).

Almost surely, 2^98724097 is an apocalyptic number.

It is an amenable number.

98724097 is a deficient number, since it is larger than the sum of its proper divisors (545619).

98724097 is a wasteful number, since it uses less digits than its factorization.

98724097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545618.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 98724097 is about 9936.0000503221. Note that the first 4 decimals coincide. The cubic root of 98724097 is about 462.1763552162.

The spelling of 98724097 in words is "ninety-eight million, seven hundred twenty-four thousand, ninety-seven".