98571439 has 2 divisors, whose sum is σ = 98571440. Its totient is φ = 98571438.

The previous prime is 98571419. The next prime is 98571461. The reversal of 98571439 is 93417589.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98571439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98571409) 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 as a sum of consecutive naturals, namely, 49285719 + 49285720.

It is an arithmetic number, because the mean of its divisors is an integer number (49285720).

Almost surely, 2^98571439 is an apocalyptic number.

98571439 is a deficient number, since it is larger than the sum of its proper divisors (1).

98571439 is an equidigital number, since it uses as much as digits as its factorization.

98571439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 98571439 is about 9928.3150131329. The cubic root of 98571439 is about 461.9380097733.

The spelling of 98571439 in words is "ninety-eight million, five hundred seventy-one thousand, four hundred thirty-nine".