98297557 has 2 divisors, whose sum is σ = 98297558. Its totient is φ = 98297556.

The previous prime is 98297533. The next prime is 98297611. The reversal of 98297557 is 75579289.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69072721 + 29224836 = 8311^2 + 5406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98297557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98297057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49148778 + 49148779.

It is an arithmetic number, because the mean of its divisors is an integer number (49148779).

Almost surely, 2^98297557 is an apocalyptic number.

It is an amenable number.

98297557 is a deficient number, since it is larger than the sum of its proper divisors (1).

98297557 is an equidigital number, since it uses as much as digits as its factorization.

98297557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 52.

The square root of 98297557 is about 9914.5124438875. The cubic root of 98297557 is about 461.5097793636.

The spelling of 98297557 in words is "ninety-eight million, two hundred ninety-seven thousand, five hundred fifty-seven".