98247139 has 4 divisors (see below), whose sum is σ = 98612640. Its totient is φ = 97881640.

The previous prime is 98247137. The next prime is 98247143. The reversal of 98247139 is 93174289.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93174289 = 13 ⋅7167253.

It is a cyclic number.

It is not a de Polignac number, because 98247139 - 2¹ = 98247137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98247095 and 98247104.

It is not an unprimeable number, because it can be changed into a prime (98247133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182347 + ... + 182884.

It is an arithmetic number, because the mean of its divisors is an integer number (24653160).

Almost surely, 2^98247139 is an apocalyptic number.

98247139 is a deficient number, since it is larger than the sum of its proper divisors (365501).

98247139 is a wasteful number, since it uses less digits than its factorization.

98247139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365500.

The product of its digits is 108864, while the sum is 43.

The square root of 98247139 is about 9911.9694813897. The cubic root of 98247139 is about 461.4308612293.

The spelling of 98247139 in words is "ninety-eight million, two hundred forty-seven thousand, one hundred thirty-nine".