99998357 has 2 divisors, whose sum is σ = 99998358. Its totient is φ = 99998356.

The previous prime is 99998323. The next prime is 99998363. The reversal of 99998357 is 75389999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53567761 + 46430596 = 7319^2 + 6814^2 .

It is an emirp because it is prime and its reverse (75389999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99998357 - 2¹⁶ = 99932821 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99998296 and 99998305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99998377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999178 + 49999179.

It is an arithmetic number, because the mean of its divisors is an integer number (49999179).

Almost surely, 2^99998357 is an apocalyptic number.

It is an amenable number.

99998357 is a deficient number, since it is larger than the sum of its proper divisors (1).

99998357 is an equidigital number, since it uses as much as digits as its factorization.

99998357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5511240, while the sum is 59.

The square root of 99998357 is about 9999.9178496626. The cubic root of 99998357 is about 464.1563413039.

The spelling of 99998357 in words is "ninety-nine million, nine hundred ninety-eight thousand, three hundred fifty-seven".