98517481 has 2 divisors, whose sum is σ = 98517482. Its totient is φ = 98517480.

The previous prime is 98517479. The next prime is 98517493. The reversal of 98517481 is 18471589.

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., 56475225 + 42042256 = 7515^2 + 6484^2 .

It is an emirp because it is prime and its reverse (18471589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98517481 - 2¹ = 98517479 is a prime.

It is a super-2 number, since 2×98517481² = 19411388125170722, which contains 22 as substring.

Together with 98517479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (98512481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49258740 + 49258741.

It is an arithmetic number, because the mean of its divisors is an integer number (49258741).

Almost surely, 2^98517481 is an apocalyptic number.

It is an amenable number.

98517481 is a deficient number, since it is larger than the sum of its proper divisors (1).

98517481 is an equidigital number, since it uses as much as digits as its factorization.

98517481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 43.

The square root of 98517481 is about 9925.5972616261. The cubic root of 98517481 is about 461.8537061089.

The spelling of 98517481 in words is "ninety-eight million, five hundred seventeen thousand, four hundred eighty-one".