98987417 has 2 divisors, whose sum is σ = 98987418. Its totient is φ = 98987416.

The previous prime is 98987389. The next prime is 98987443. The reversal of 98987417 is 71478989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72403081 + 26584336 = 8509^2 + 5156^2 .

It is an emirp because it is prime and its reverse (71478989) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98987417 is a prime.

It is not a weakly prime, because it can be changed into another prime (98987467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49493708 + 49493709.

It is an arithmetic number, because the mean of its divisors is an integer number (49493709).

Almost surely, 2^98987417 is an apocalyptic number.

It is an amenable number.

98987417 is a deficient number, since it is larger than the sum of its proper divisors (1).

98987417 is an equidigital number, since it uses as much as digits as its factorization.

98987417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 53.

The square root of 98987417 is about 9949.2420314313. The cubic root of 98987417 is about 462.5869008367.

The spelling of 98987417 in words is "ninety-eight million, nine hundred eighty-seven thousand, four hundred seventeen".