98644853 has 2 divisors, whose sum is σ = 98644854. Its totient is φ = 98644852.

The previous prime is 98644831. The next prime is 98644859. The reversal of 98644853 is 35844689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71791729 + 26853124 = 8473^2 + 5182^2 .

It is an emirp because it is prime and its reverse (35844689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98644853 - 2¹² = 98640757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 98644798 and 98644807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98644859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49322426 + 49322427.

It is an arithmetic number, because the mean of its divisors is an integer number (49322427).

Almost surely, 2^98644853 is an apocalyptic number.

It is an amenable number.

98644853 is a deficient number, since it is larger than the sum of its proper divisors (1).

98644853 is an equidigital number, since it uses as much as digits as its factorization.

98644853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 47.

The square root of 98644853 is about 9932.0115283864. The cubic root of 98644853 is about 462.0526619880.

The spelling of 98644853 in words is "ninety-eight million, six hundred forty-four thousand, eight hundred fifty-three".