98101609 has 2 divisors, whose sum is σ = 98101610. Its totient is φ = 98101608.

The previous prime is 98101589. The next prime is 98101631. The reversal of 98101609 is 90610189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95004009 + 3097600 = 9747^2 + 1760^2 .

It is an emirp because it is prime and its reverse (90610189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98101609 - 2¹⁹ = 97577321 is a prime.

It is not a weakly prime, because it can be changed into another prime (98101649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49050804 + 49050805.

It is an arithmetic number, because the mean of its divisors is an integer number (49050805).

Almost surely, 2^98101609 is an apocalyptic number.

It is an amenable number.

98101609 is a deficient number, since it is larger than the sum of its proper divisors (1).

98101609 is an equidigital number, since it uses as much as digits as its factorization.

98101609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 98101609 is about 9904.6256365397. The cubic root of 98101609 is about 461.2029149235.

The spelling of 98101609 in words is "ninety-eight million, one hundred one thousand, six hundred nine".