98917771 has 2 divisors, whose sum is σ = 98917772. Its totient is φ = 98917770.

The previous prime is 98917757. The next prime is 98917813. The reversal of 98917771 is 17771989.

It is a weak prime.

It is an emirp because it is prime and its reverse (17771989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98917771 - 2¹³ = 98909579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98917171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49458885 + 49458886.

It is an arithmetic number, because the mean of its divisors is an integer number (49458886).

Almost surely, 2^98917771 is an apocalyptic number.

98917771 is a deficient number, since it is larger than the sum of its proper divisors (1).

98917771 is an equidigital number, since it uses as much as digits as its factorization.

98917771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 49.

The square root of 98917771 is about 9945.7413499447. The cubic root of 98917771 is about 462.4783857442.

The spelling of 98917771 in words is "ninety-eight million, nine hundred seventeen thousand, seven hundred seventy-one".