98357557 has 2 divisors, whose sum is σ = 98357558. Its totient is φ = 98357556.

The previous prime is 98357533. The next prime is 98357599. The reversal of 98357557 is 75575389.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84474481 + 13883076 = 9191^2 + 3726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98357557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98357557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98357527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49178778 + 49178779.

It is an arithmetic number, because the mean of its divisors is an integer number (49178779).

Almost surely, 2^98357557 is an apocalyptic number.

It is an amenable number.

98357557 is a deficient number, since it is larger than the sum of its proper divisors (1).

98357557 is an equidigital number, since it uses as much as digits as its factorization.

98357557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1323000, while the sum is 49.

The square root of 98357557 is about 9917.5378496883. The cubic root of 98357557 is about 461.6036608241.

The spelling of 98357557 in words is "ninety-eight million, three hundred fifty-seven thousand, five hundred fifty-seven".