98765389 has 2 divisors, whose sum is σ = 98765390. Its totient is φ = 98765388.

The previous prime is 98765383. The next prime is 98765399. The reversal of 98765389 is 98356789.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85877289 + 12888100 = 9267^2 + 3590^2 .

It is an emirp because it is prime and its reverse (98356789) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98765389 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 (98765383) 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, 49382694 + 49382695.

It is an arithmetic number, because the mean of its divisors is an integer number (49382695).

Almost surely, 2^98765389 is an apocalyptic number.

It is an amenable number.

98765389 is a deficient number, since it is larger than the sum of its proper divisors (1).

98765389 is an equidigital number, since it uses as much as digits as its factorization.

98765389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 55.

The square root of 98765389 is about 9938.0777316340. The cubic root of 98765389 is about 462.2407823303.

The spelling of 98765389 in words is "ninety-eight million, seven hundred sixty-five thousand, three hundred eighty-nine".