98497557 has 12 divisors (see below), whose sum is σ = 142388064. Its totient is φ = 65612520.

The previous prime is 98497549. The next prime is 98497603. The reversal of 98497557 is 75579489.

98497557 is a `hidden beast` number, since 9 + 84 + 9 + 7 + 557 = 666.

It is not a de Polignac number, because 98497557 - 2³ = 98497549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98497537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9978 + ... + 17220.

It is an arithmetic number, because the mean of its divisors is an integer number (11865672).

Almost surely, 2^98497557 is an apocalyptic number.

It is an amenable number.

98497557 is a deficient number, since it is larger than the sum of its proper divisors (43890507).

98497557 is a wasteful number, since it uses less digits than its factorization.

98497557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8760 (or 8757 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 98497557 is about 9924.5935433145. The cubic root of 98497557 is about 461.8225691859.

The spelling of 98497557 in words is "ninety-eight million, four hundred ninety-seven thousand, five hundred fifty-seven".