98510609 has 2 divisors, whose sum is σ = 98510610. Its totient is φ = 98510608.

The previous prime is 98510567. The next prime is 98510617. The reversal of 98510609 is 90601589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68227600 + 30283009 = 8260^2 + 5503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98510609 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (98510309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49255304 + 49255305.

It is an arithmetic number, because the mean of its divisors is an integer number (49255305).

Almost surely, 2^98510609 is an apocalyptic number.

It is an amenable number.

98510609 is a deficient number, since it is larger than the sum of its proper divisors (1).

98510609 is an equidigital number, since it uses as much as digits as its factorization.

98510609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 98510609 is about 9925.2510799475. The cubic root of 98510609 is about 461.8429671265.

The spelling of 98510609 in words is "ninety-eight million, five hundred ten thousand, six hundred nine".