98591369 has 2 divisors, whose sum is σ = 98591370. Its totient is φ = 98591368.

The previous prime is 98591359. The next prime is 98591411. The reversal of 98591369 is 96319589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73960000 + 24631369 = 8600^2 + 4963^2 .

It is a cyclic number.

It is not a de Polignac number, because 98591369 - 2⁸ = 98591113 is a prime.

It is a super-2 number, since 2×98591369² = 19440516082588322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98591309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49295684 + 49295685.

It is an arithmetic number, because the mean of its divisors is an integer number (49295685).

Almost surely, 2^98591369 is an apocalyptic number.

It is an amenable number.

98591369 is a deficient number, since it is larger than the sum of its proper divisors (1).

98591369 is an equidigital number, since it uses as much as digits as its factorization.

98591369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 50.

The square root of 98591369 is about 9929.3186573903. The cubic root of 98591369 is about 461.9691405086.

The spelling of 98591369 in words is "ninety-eight million, five hundred ninety-one thousand, three hundred sixty-nine".