98623139 has 2 divisors, whose sum is σ = 98623140. Its totient is φ = 98623138.

The previous prime is 98623117. The next prime is 98623177. The reversal of 98623139 is 93132689.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98623139 - 2²⁴ = 81845923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 98623096 and 98623105.

It is not a weakly prime, because it can be changed into another prime (98623939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49311569 + 49311570.

It is an arithmetic number, because the mean of its divisors is an integer number (49311570).

Almost surely, 2^98623139 is an apocalyptic number.

98623139 is a deficient number, since it is larger than the sum of its proper divisors (1).

98623139 is an equidigital number, since it uses as much as digits as its factorization.

98623139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 98623139 is about 9930.9183361862. The cubic root of 98623139 is about 462.0187566956.

The spelling of 98623139 in words is "ninety-eight million, six hundred twenty-three thousand, one hundred thirty-nine".