98569969 has 2 divisors, whose sum is σ = 98569970. Its totient is φ = 98569968.

The previous prime is 98569949. The next prime is 98569979. The reversal of 98569969 is 96996589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91872225 + 6697744 = 9585^2 + 2588^2 .

It is a cyclic number.

It is not a de Polignac number, because 98569969 - 2⁵ = 98569937 is a prime.

It is a super-2 number, since 2×98569969² = 19432077577321922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98569949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49284984 + 49284985.

It is an arithmetic number, because the mean of its divisors is an integer number (49284985).

Almost surely, 2^98569969 is an apocalyptic number.

It is an amenable number.

98569969 is a deficient number, since it is larger than the sum of its proper divisors (1).

98569969 is an equidigital number, since it uses as much as digits as its factorization.

98569969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9447840, while the sum is 61.

The square root of 98569969 is about 9928.2409821680. The cubic root of 98569969 is about 461.9357134616.

The spelling of 98569969 in words is "ninety-eight million, five hundred sixty-nine thousand, nine hundred sixty-nine".