98556917 has 2 divisors, whose sum is σ = 98556918. Its totient is φ = 98556916.

The previous prime is 98556901. The next prime is 98556919. The reversal of 98556917 is 71965589.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86229796 + 12327121 = 9286^2 + 3511^2 .

It is a cyclic number.

It is not a de Polignac number, because 98556917 - 2⁴ = 98556901 is a prime.

Together with 98556919, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98556919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49278458 + 49278459.

It is an arithmetic number, because the mean of its divisors is an integer number (49278459).

Almost surely, 2^98556917 is an apocalyptic number.

It is an amenable number.

98556917 is a deficient number, since it is larger than the sum of its proper divisors (1).

98556917 is an equidigital number, since it uses as much as digits as its factorization.

98556917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 50.

The square root of 98556917 is about 9927.5836435660. The cubic root of 98556917 is about 461.9153237116.

The spelling of 98556917 in words is "ninety-eight million, five hundred fifty-six thousand, nine hundred seventeen".