98871217 has 2 divisors, whose sum is σ = 98871218. Its totient is φ = 98871216.

The previous prime is 98871211. The next prime is 98871239. The reversal of 98871217 is 71217889.

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., 78836641 + 20034576 = 8879^2 + 4476^2 .

It is a cyclic number.

It is not a de Polignac number, because 98871217 - 2¹⁹ = 98346929 is a prime.

It is a super-2 number, since 2×98871217² = 19551035102122178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98871211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49435608 + 49435609.

It is an arithmetic number, because the mean of its divisors is an integer number (49435609).

Almost surely, 2^98871217 is an apocalyptic number.

It is an amenable number.

98871217 is a deficient number, since it is larger than the sum of its proper divisors (1).

98871217 is an equidigital number, since it uses as much as digits as its factorization.

98871217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 43.

The square root of 98871217 is about 9943.4006758251. The cubic root of 98871217 is about 462.4058217784.

The spelling of 98871217 in words is "ninety-eight million, eight hundred seventy-one thousand, two hundred seventeen".