98682557 has 2 divisors, whose sum is σ = 98682558. Its totient is φ = 98682556.

The previous prime is 98682547. The next prime is 98682559. The reversal of 98682557 is 75528689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96157636 + 2524921 = 9806^2 + 1589^2 .

It is an emirp because it is prime and its reverse (75528689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98682557 - 2⁴ = 98682541 is a prime.

Together with 98682559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98682559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49341278 + 49341279.

It is an arithmetic number, because the mean of its divisors is an integer number (49341279).

Almost surely, 2^98682557 is an apocalyptic number.

It is an amenable number.

98682557 is a deficient number, since it is larger than the sum of its proper divisors (1).

98682557 is an equidigital number, since it uses as much as digits as its factorization.

98682557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 50.

The square root of 98682557 is about 9933.9094519731. The cubic root of 98682557 is about 462.1115230231. Note that the first 3 decimals are identical.

The spelling of 98682557 in words is "ninety-eight million, six hundred eighty-two thousand, five hundred fifty-seven".