98523613 has 2 divisors, whose sum is σ = 98523614. Its totient is φ = 98523612.

The previous prime is 98523599. The next prime is 98523727. The reversal of 98523613 is 31632589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92968164 + 5555449 = 9642^2 + 2357^2 .

It is an emirp because it is prime and its reverse (31632589) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98523613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98523913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49261806 + 49261807.

It is an arithmetic number, because the mean of its divisors is an integer number (49261807).

Almost surely, 2^98523613 is an apocalyptic number.

It is an amenable number.

98523613 is a deficient number, since it is larger than the sum of its proper divisors (1).

98523613 is an equidigital number, since it uses as much as digits as its factorization.

98523613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 98523613 is about 9925.9061551075. The cubic root of 98523613 is about 461.8632882600.

The spelling of 98523613 in words is "ninety-eight million, five hundred twenty-three thousand, six hundred thirteen".