98857439 has 2 divisors, whose sum is σ = 98857440. Its totient is φ = 98857438.

The previous prime is 98857379. The next prime is 98857459. The reversal of 98857439 is 93475889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98857439 - 2⁸ = 98857183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98857459) 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 as a sum of consecutive naturals, namely, 49428719 + 49428720.

It is an arithmetic number, because the mean of its divisors is an integer number (49428720).

Almost surely, 2^98857439 is an apocalyptic number.

98857439 is a deficient number, since it is larger than the sum of its proper divisors (1).

98857439 is an equidigital number, since it uses as much as digits as its factorization.

98857439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 98857439 is about 9942.7078303649. The cubic root of 98857439 is about 462.3843415689.

The spelling of 98857439 in words is "ninety-eight million, eight hundred fifty-seven thousand, four hundred thirty-nine".