98557117 has 2 divisors, whose sum is σ = 98557118. Its totient is φ = 98557116.

The previous prime is 98557103. The next prime is 98557133. The reversal of 98557117 is 71175589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56385081 + 42172036 = 7509^2 + 6494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98557117 is a prime.

It is a super-2 number, since 2×98557117² = 19427010622703378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98557717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49278558 + 49278559.

It is an arithmetic number, because the mean of its divisors is an integer number (49278559).

Almost surely, 2^98557117 is an apocalyptic number.

It is an amenable number.

98557117 is a deficient number, since it is larger than the sum of its proper divisors (1).

98557117 is an equidigital number, since it uses as much as digits as its factorization.

98557117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 43.

The square root of 98557117 is about 9927.5937165055. The cubic root of 98557117 is about 461.9156361639.

The spelling of 98557117 in words is "ninety-eight million, five hundred fifty-seven thousand, one hundred seventeen".