98556869 has 2 divisors, whose sum is σ = 98556870. Its totient is φ = 98556868.

The previous prime is 98556859. The next prime is 98556881. The reversal of 98556869 is 96865589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97812100 + 744769 = 9890^2 + 863^2 .

It is a cyclic number.

It is not a de Polignac number, because 98556869 - 2⁸ = 98556613 is a prime.

It is a super-2 number, since 2×98556869² = 19426912854166322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98556859) 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, 49278434 + 49278435.

It is an arithmetic number, because the mean of its divisors is an integer number (49278435).

Almost surely, 2^98556869 is an apocalyptic number.

It is an amenable number.

98556869 is a deficient number, since it is larger than the sum of its proper divisors (1).

98556869 is an equidigital number, since it uses as much as digits as its factorization.

98556869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 56.

The square root of 98556869 is about 9927.5812260590. The cubic root of 98556869 is about 461.9152487230.

The spelling of 98556869 in words is "ninety-eight million, five hundred fifty-six thousand, eight hundred sixty-nine".