98721147 has 8 divisors (see below), whose sum is σ = 150432256. Its totient is φ = 56412072.

The previous prime is 98721121. The next prime is 98721151. The reversal of 98721147 is 74112789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 98721147 - 2¹⁰ = 98720123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98721107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350483 + ... + 2350524.

It is an arithmetic number, because the mean of its divisors is an integer number (18804032).

Almost surely, 2^98721147 is an apocalyptic number.

98721147 is a deficient number, since it is larger than the sum of its proper divisors (51711109).

98721147 is a wasteful number, since it uses less digits than its factorization.

98721147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701017.

The product of its digits is 28224, while the sum is 39.

The square root of 98721147 is about 9935.8515991333. The cubic root of 98721147 is about 462.1717517004.

The spelling of 98721147 in words is "ninety-eight million, seven hundred twenty-one thousand, one hundred forty-seven".