98436139 has 4 divisors (see below), whose sum is σ = 98564256. Its totient is φ = 98308024.

The previous prime is 98436109. The next prime is 98436157. The reversal of 98436139 is 93163489.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93163489 = 659 ⋅141371.

It is a cyclic number.

It is not a de Polignac number, because 98436139 - 2⁷ = 98436011 is a prime.

It is a super-2 number, since 2×98436139² = 19379346922454642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98436095 and 98436104.

It is not an unprimeable number, because it can be changed into a prime (98436109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62899 + ... + 64444.

It is an arithmetic number, because the mean of its divisors is an integer number (24641064).

Almost surely, 2^98436139 is an apocalyptic number.

98436139 is a deficient number, since it is larger than the sum of its proper divisors (128117).

98436139 is a wasteful number, since it uses less digits than its factorization.

98436139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128116.

The product of its digits is 139968, while the sum is 43.

The square root of 98436139 is about 9921.4988283021. The cubic root of 98436139 is about 461.7265596437.

The spelling of 98436139 in words is "ninety-eight million, four hundred thirty-six thousand, one hundred thirty-nine".