98823149 has 2 divisors, whose sum is σ = 98823150. Its totient is φ = 98823148.

The previous prime is 98823139. The next prime is 98823173. The reversal of 98823149 is 94132889.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80820100 + 18003049 = 8990^2 + 4243^2 .

It is an emirp because it is prime and its reverse (94132889) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98823149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98823139) 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, 49411574 + 49411575.

It is an arithmetic number, because the mean of its divisors is an integer number (49411575).

Almost surely, 2^98823149 is an apocalyptic number.

It is an amenable number.

98823149 is a deficient number, since it is larger than the sum of its proper divisors (1).

98823149 is an equidigital number, since it uses as much as digits as its factorization.

98823149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 98823149 is about 9940.9833014647. The cubic root of 98823149 is about 462.3308740275.

It can be divided in two parts, 9882 and 3149, that added together give a palindrome (13031).

The spelling of 98823149 in words is "ninety-eight million, eight hundred twenty-three thousand, one hundred forty-nine".