98749439 has 2 divisors, whose sum is σ = 98749440. Its totient is φ = 98749438.

The previous prime is 98749433. The next prime is 98749451. The reversal of 98749439 is 93494789.

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-98749439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98749433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49374719 + 49374720.

It is an arithmetic number, because the mean of its divisors is an integer number (49374720).

Almost surely, 2^98749439 is an apocalyptic number.

98749439 is a deficient number, since it is larger than the sum of its proper divisors (1).

98749439 is an equidigital number, since it uses as much as digits as its factorization.

98749439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 53.

The square root of 98749439 is about 9937.2752301624. The cubic root of 98749439 is about 462.2158979807.

The spelling of 98749439 in words is "ninety-eight million, seven hundred forty-nine thousand, four hundred thirty-nine".