98556881 has 2 divisors, whose sum is σ = 98556882. Its totient is φ = 98556880.

The previous prime is 98556869. The next prime is 98556893. The reversal of 98556881 is 18865589.

It is a balanced prime because it is at equal distance from previous prime (98556869) and next prime (98556893).

It can be written as a sum of positive squares in only one way, i.e., 91374481 + 7182400 = 9559^2 + 2680^2 .

It is a cyclic number.

It is not a de Polignac number, because 98556881 - 2¹⁸ = 98294737 is a prime.

It is a super-2 number, since 2×98556881² = 19426917584896322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98556811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49278440 + 49278441.

It is an arithmetic number, because the mean of its divisors is an integer number (49278441).

Almost surely, 2^98556881 is an apocalyptic number.

It is an amenable number.

98556881 is a deficient number, since it is larger than the sum of its proper divisors (1).

98556881 is an equidigital number, since it uses as much as digits as its factorization.

98556881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691200, while the sum is 50.

The square root of 98556881 is about 9927.5818304358. The cubic root of 98556881 is about 461.9152674701.

The spelling of 98556881 in words is "ninety-eight million, five hundred fifty-six thousand, eight hundred eighty-one".